Barcodes and data matrix codes for letter mail

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    Barcodes and data matrix codes for letter mail

    Application and generation

    Change control

    1 January 2022 Additions to “Registered”, returns and data matrix code Various pages 
    1 January 2023 Abrogation liability “A Mail Plus”  Various pages
    1 January 2024 Discontinuation of “2nd attempted delivery on the following Saturday” delivery instruction  Various pages

    1. Purpose of this guide

    1.1 Who is this guide aimed at?

    This guide describes the use of barcodes and data matrix codes for letter mail and sets out the technical requirements for generating the codes.

    • It is aimed at people who:
    • process business mail
    • hand in business items for mailing
    • produce barcodes for mail
    • generate barcodes and data matrix codes for letter mail
    • support mail processing systems (hardware and software solutions for automated mail creation)
    • develop or implement software for mail processing and barcode generation

    1.2 Overview of contents

    This guide covers the following topics:

    • description of the various types of barcodes and data matrix codes
    • applications and combination options
    • applying barcodes and data matrix codes to letters
    • generating barcodes and data matrix codes for letter mail
    • mailing letter consignments
    • technical data for software development and implementation

    1.3 Validity

    This guide is valid from 1 January 2024. It replaces the “Barcodes and data matrix codes for letter mail” guide dated 1 January 2023.

    1.4 Notes

    The graphics in this manual are not true to scale. The specified dimensions are binding. References to persons refer to individuals of all gender identities.

    2. Barcodes and data matrix codes for letter mail

    2.1 General information

    2.2 Overview of barcodes and data matrix codes for letter mail

    Post CH Ltd uses four types of codes for letter mail:

    • (A) Shipping barcode

      To identify letters with barcode and for electronic track and trace (acceptance, sorting, delivery).

    • (B) Value-added service barcode

      To indicate the value-added services requested by the sender (for example electronic cash on delivery, return receipt, electronic return receipt, personal delivery).

    • (C) Data matrix code

      As an identification feature for PP franked consignments (Letter ID light and Letter ID) and as a control element for consignments with barcode (registered, LID and LCS).

    • (D) Delivery instructions

      To indicate the delivery instructions required by the sender.

    • (E) Return note

      To indicate the delivery instructions required by the sender for registered domestic mail (R) in combination with a data matrix code.

    Important: Different specifications apply to domestic and international mail in each case. These are therefore described separately in this guide.

    2.3 The benefits of using barcodes and data matrix codes

    Shipping barcodes

    Shipping barcodes are used for
    • registered (R)
    • A Mail Plus (A+)
    • Dispomail (A)
    • court documents (GU)
    • debt collection documents (BU)
    • Electronic cash on delivery (BLN)
    • Letter with ID check/contract signing (CT)
    • Letter with ID check (ID)
    • PRIORITY Plus
    • international letter mail containing goods (untracked)
    Using shipping barcodes enables
    • automated, efficient and cost-effective mail processing
    • proof of posting
    • a detailed confirmation of receipt
    • online tracking of letter mail www.swisspost.ch/track-consignments
    • for letters with barcode: legally binding objective evidence including Swiss Post liability
    • for Letter mail easy: automatic invoicing using the barcode

    Value-added service barcodes

    Value-added service barcodes indicate which value-added services have been requested for the product specified on the shipping barcode.

    Value-added service barcodes are used for
    • domestic mail with a shipping barcode
    Value-added service barcodes enable
    • automated, efficient and cost-effective mail processing

    Data matrix codes

    Data matrix codes are used for
    • letter mail with the Letter ID light identification feature (static data content)
    • letter mail with the Letter ID identification feature (dynamic data content)
    • Letter with ID check/contract signing
    • Letter with ID check
    • election and voting consignments
    • business reply label with data matrix code
    • Global Response with data matrix code
    • Registered (R) with the return note “Retour non recommandé”
    Using data matrix codes enables
    • automated mail processing
    • access to other services
    • more scope in terms of the design of your consignments
    • instructions to be provided for the desired returns processing from eight options
    • information about the sorting status

    Delivery instructions

    Delivery instructions indicate how mail is to be treated during the delivery process.

    Delivery instructions are used for
    • domestic mail with barcode (registered mail, court and debt collection documents, Letter with ID check and Letter with ID check/contract signing)
    Using delivery instructions allows you to
    • have your mail delivered in a flexible manner

    Registered (R) with the return note “Retour non recommandé”

    With the optically recognizable return note “Retour non recommandé”, you order that your registered letter will be treated as an unregistered letter during the returns process in the event it is undeliverable, acceptance is refusedor it is not collected within the storage period. Consignment tracking is thus no longer possible during the returns process. Taxable returns will be invoiced at CHF 0.60.

    Note: The old return notes (Return as A Mail or Return as B Mail) have been replaced by the return note “Return as unregistered” incl. data matrix code.

    Registered (R) without return note

    If you want registered letters to be returned as registered letters, then there is no need for an optical return note, nor for section 5 in any DmC that may be used.

    Returned consignments without a return note are also processed as registered mail (R) and retain both the possibility for consignment tracking and liability claims.

    These returns are always physically returned to the optically recognizable, unique sender on the consignment. The DmC is not considered in the returns process.

    Return notes are used for
    • registered domestic mail (R)
    • Letter with ID check
    • Letter with ID check/contract signing

    Barcode for pallets

    The barcode for pallets is used for all bulk mailings delivered on pallets:

    • A Mail
    • B Mail individual items
    • B Mail bulk mailing
    • OnTime Mail
    • Professional Mail
    Using barcodes for pallets allows you to
    • query the processing status of an order and accurately plan the downstream processes.

    Returns processing with data matrix code

    Definition of letter mail returns
    • a) Undeliverable consignment: The consignment could not be delivered to the recipient for one of the following reasons: Relocation / the recipient could not be determined / address error / recipient is deceased / company is no longer in business / letter box has not been emptied.
    • b) Refused consignment: The consignment was able to be successfully delivered, but the recipient refused to accept it.
    • c) Uncollected consignment: The recipient was notified about a registered letter to be collected, but did not collect it within seven calendar days.
    Returns management

    With a Letter ID or Letter ID light, you can choose from eight different return handling options and provide this as an instruction in the DmC.

    These options are described in the “Returns” factsheet www.swisspost.ch/returns.

    Return instructions cannot be used in the DmC

    The DmC is not considered for registered letters (unless there is the return note “Retour non recommandé”).

    The DmC is also not permitted for court documents, electronic cash on delivery, Dispomail, Priority Plus and registered international mail.

    Requirements for the consignment preparation and DmC

    There are specifications for using a DmC with return instructions. These can be found in the relevant section of this manual and in the “Returns” factsheet.

    Other restrictions

    In general, only ONE postal DmC is permitted for each consignment. Combinations with IFS franking or WebStamp are therefore not possible.

    Information on returns management:

    You can use barcodes and data matrix codes for your letter mail if you

    • are registered with Post CH Ltd as a business customer
    • have a billing relationship with Swiss Post
    • and have the required franking licences.

    2.4 Terms of use

    Registering as a business customer

    If you are not already registered as a business customer of Post CH Ltd, register now in the “My Post” customer portal.

    “My Post” customer portal registration:

    Other ways of registering as a business customer:

    Once you have registered as a business customer, you will be issued with an invoice reference number, which will be stated on all your invoices, and the requested franking licences.

    Franking licences for shipping and value-added service barcodes

    Shipping barcodes and value-added service barcodes can be used on products for which you have one of the following franking licences:

    • franking licence for registered mail
    • franking licence for non-registered mail
    • franking licence for international consignments with barcode (registered, PRIORITY Plus)

    You can view your franking licence at

    Invoice reference number for data matrix codes

    To use the two data matrix codes Letter ID light and Letter ID, you need an invoice reference number. You will be issued with this number when you register as a business customer.

    You can view your invoice reference number

    • on your monthly bill from Post CH Ltd

    3. Using shipping barcodes

    3.1 Shipping barcodes for domestic mail

    Shipping barcodes for domestic mail

    Shipping barcodes cannot only be read electronically. They also have plain text elements. It is therefore possible to see at a glance which mail product has been selected, whether it is franked with Letter mail easy and where any returns should be directed.

    • (A) product code (capital letters)
    • (B) optional: full-text product designation
    • (C) indication of the branch at the domicile (postcode and town). Any returns will be sent back to this point if there are no additional sender details.
    • (D) for Letter mail easy: PP impression
    • (E) Swiss Post logo
    • (F) return note for registered domestic mail (R) (optional) incl. data matrix code

    3.2 Overview of shipping barcodes for domestic mail

    Registered (R)

    Send any letter mail with important or valuable content as registered mail (R). 
    This means that the letter mail will only be handed over to the recipient if signed for or authorization for delivery has been issued. You can use the electronic consignment tracking facility via the “Track consignments” online service to track consignments online and check their processing status. Registered letters are covered up to a liability amount of CHF 500 against loss, damage and incorrect delivery.

    For information about the registered mail (R) service, see

    A Mail Plus (A+)

    A Mail Plus combines the speedy delivery times of A Mail with electronic tracking. Your letter mail will be in the recipient’s letter box or P.O. Box on the next working day (including Saturday). You can use the electronic consignment tracking facility via the “Track consignments” online service to track consignments online and check their processing status.

    A Mail Plus letters will be returned in the standard returns channel. The consignment will be delivered together with other returns, which means there is no need to scan return deliveries.

    For information about the A Mail Plus service, see

    Dispomail (A)

    With Dispomail, you can bulk mail large quantities of documents, files or plans intended for the same recipient at a special price. You post the items for mailing in the evening, and they arrive in the recipient’s P.O. Box the next morning (including Saturdays). You can use the electronic consignment tracking facility via the “Track consignments” online service to track consignments online and check their processing status.Dispomail items can only be sent to P.O. Box addresses. Swiss Post accepts no liability for Dispomail consignments.

    For information about the Dispomail service, see

    Court Documents and Court Document Online (only available to judicial bodies)

    The Court Documents and Court Document Online products are available for sending summons, fines, judgements and other legal documents. These can only be sent by judicial bodies. For more information, please contact your customer advisor or pm-produkt-support@post.ch.

    For information about the product, see

    Debt collection documents (BU) (only available to debt collection agencies)

    With the introduction of the eSchKG 2.0 standard, every debt collection document has a shipping barcode for debt collection documents. Combinations with other shipping barcodes (e.g. Registered mail or A Mail Plus) are not permitted. Debt collection documents include payment summons and bankruptcy notices which can only be sent by debt collection and bankruptcy agencies.

    Information about the debt collection documents product:

    Electronic cash on delivery (BLN)

    Letter mail sent as electronic cash on delivery will be delivered only on receipt of payment of the specified amount. Delivery of your money is therefore guaranteed

    • up to a collection amount of CHF 10,000.
    • Items may be sent as A Mail or B Mail individual items.

    The following value-added service barcode is always added to this consignment barcode:

    Information about the electronic cash on delivery product:

    Letter with ID check/contract signing (LID-CS)

    The Letter with ID check/contract signing requires two consignment barcodes, one for sending:

    and one for return:

    The Letter with ID check/contract signing enables you to obtain signatures and proof of identify through Swiss Post for contracts ordered by telephone or online (incl. electronic ID copy). This modular product is arranged only on a contractual basis. For more information, please contact your customer advisor.

    Information on the Letter with ID check/contract signing product:

    Letter with ID check (LID)

    The Letter with ID check requires two consignment barcodes, one for sending:

    and one for return:

    More and more business processes require customer identification or an electronic copy of an ID document. With Letter with ID check, Swiss Post generates this copy of the ID documents at the recipient’s doorstep so as to uniquely identify the recipient. This product is provided in modular form on a contractual basis only. For more information, please contact your customer advisor.

    Information on the product Letter with ID check:

    Creating customer-specific 1D barcodes for the front of the consignment

    Minimum requirements for “customer-specific 1D barcodes” for the front of the consignment

    • Structure: ordinary numerical 128-character barcode
    • Number: the barcode may not begin with a 9 or 098, must contain at least 5 digits and may contain a maximum of 17 numerical digits. 12-digit barcodes are only possible in certainarrangements, please ask your customer advisor for more information. Every new barcode must be checked by Swiss Post. Please send requests to the regional final proof team at www.swisspost.ch/final-proof.
    • Additional information: there must be no letters of the alphabet to the left of the barcode (e.g. R)
    • Placement: in the advertising and sender zone, not above the recipient address

    3.3 Shipping barcodes for international mail

    Shipping barcodes cannot only be read electronically. They also have plain text elements. It is therefore possible to see at a glance which mail product has been selected.

    • (A) product code (capital letters)
    • (B) optional: full-text product designation
    • (C) handling instructions

    Shipping barcodes for international mail can be readily identified by the “CH” (D) in the human-readable information under the barcode.

    • (E) Swiss Post logo

    3.4 Overview of shipping barcodes for international mail

    International registered mail (R)

    Send any letter mail with important or valuable content as international registered mail (R). Recipients will then be required to sign for the letters on delivery. You can use the electronic track and trace facility via the “Track consignments” online service to track consignments online (depending on the country of destination) and check their processing status. Registered international letters are covered up to a liability amount of CHF 150 against loss, damage and incorrect delivery.

    For information about the international registered mail (R) service, see

    PRIORITY Plus

    Example: harmonized label with PRIORITY PLUS value-added service for consignment containing documents
    Example: harmonized label with PRIORITY PLUS value-added service for consignment containing goods

    Use PRIORITY Plus if you want to track your consignments. The consignments are given preferential treatmentin the countries of destination and delivered to recipients without a signature. You can use the electronic consignment tracking facility via the “Track consignments” online service to track consignments online and check their processing status.

    The customer-specific PRIORITY-Plus consignment barcode is only allowed in conjunction with an international harmonized label. For instructions on zcreating the harmonized label, please contact your international customer advice service or international@post.ch.

    Information on the PRIORITY Plus service:

    Availability of PRIORITY Plus in individual countries:

    International letter mail containing goods (Untracked)

    The Universal Postal Union (UPU) and the International Post Corporation (IPC) have changed the conditions for sending goods consignments abroad. The green CN22 customs form is now only accepted for pure document consignments. For all other content (goods and books) of international letter mail, the electronic creation of customs declarations is mandatory for all countries worldwide. www.swisspost.ch/international-accompanying-documents

    For international letter mail, use Untracked barcodes if you are sending consignments containing goods and do not require consignment tracking. The barcode is required in the destination countries for customs clearance.

    The customer-specific Untracked barcode is only allowed in conjunction with an international harmonized label. For instructions on creating the harmonized label, please contact your international customer advice service or international@post.ch.

    For information about the Untracked product, see

    4. Using value-added service barcodes

    4.1 Value-added service barcodes for domestic mail

    In addition to the product specified on the consignment barcode, you can also indicate requested value-added services with barcodes. Several value-added service barcodes can be combined if necessary.

    The following value-added services are available for domestic mail:

    To use A Mail Plus with a business reply label, please contact your customer advisor.

    Value-added service barcodes

    Value-added service barcodes can be read not only electronically. They also have plain text elements. It is therefore possible to see at a glance which value-added service has been requested and – as shown in these example – the value of any cash on delivery amount.

    • (A) Designation of value-added service
    • (B) Value-added service barcode for electronic cash on delivery also includes: Currency description “CHF” and COD amount

    4.2 Overview of value-added service barcodes for domestic mail

    Return receipt (AR)

    If you would like written confirmation of when and to whom a letter was delivered, mark it with the “AR” value-added service barcode. Thereturn receipt attached to the item will be signed by the recipient or other authorized person on delivery. The receipt will then be posted back to you by A Mail as confirmation.

    • Fill out a return receipt (form 428.01)
    • The return receipt must be affixed to the back of the consignment.

    For information about the return receipt (AR) value-added service, see

    Return receipt form:

    Electronic return receipt (eAR)

    If you would like to reduce expenses for creating a consignment and receive the return receipt in digital form (PDF/A signed) for your records, use the “Electronic return receipt” service. Label your registered mail with the “eAR” additional barcode and send us the associated consignment data via DataTransfer. 

    Information about DataTransfer:

    www.swisspost.ch/datatransfer

    Personal delivery (RMP)

    If a letter is to be delivered only to a specific named person, mark it with the “RMP” value-added service barcode.

    • Items for personal delivery (RMP) may only be addressed to natural individual persons.
    • Write out the first name and last name of the recipient.

    For information about the personal delivery (RMP) value-added service, see

    Electronic cash on delivery (BLN)

    The electronic cash on delivery (BLN) value-added service is a cost-effective and secure alternative to payment by invoice or by credit card: Thanks to immediate payment when the goods are delivered, there is no time-consuming follow-up reminder or drawn-out payment collection process. Submission of consignment data is mandatory.

    • Label the item with the “BLN” value-added service barcode and the amount to be collected on delivery for each consignment.

    For information about the electronic cash on delivery (BLN) value-added service, see

    Information about DataTransfer:

    ID check (ID+RMP)

    With the ID check value-added service, the person is uniquely identified and an electronic copy of their ID document is generated.

    • The consignment may be handed over only to the person listed in the address.
    • Addresses must be correct (including first and last name) and are possible only to natural persons.

    Information on the “ID check (ID+RMP)” value-added service:

    Items for the blind (CEC)

    Consignments (letters and parcels up to max. 7 kg) to/from blind people, persons with visual impairments and institutions for the blind are delivered free of charge. Label these consignments with the “CEC” value-added service barcode.

    For information about the items for the blind (CEC) value-added service, see

    Military mail (MIL)

    Letter and parcel consignments to military personnel up to a maximum weight of 5 kg (without value-added services) can be sent throughout Switzerland free of charge. Label these consignments with the “MIL” value-added service barcode. Consignments up to 30 kg from army headquarters are transported postage-free.

    For information about the military mail (MIL) value-added service, see

    Business reply label (GAS)

    With the business reply label for registered letters and A Mail Plus items, your customers can react to offers, surveys or campaigns and get in touch with you quickly and easily without paying any postage. Consignments with business reply labels require a franking licence for Letter mail easy. 

    To use A Mail Plus with a business reply label, please contact your customer advisor.

    4.3 Indicating value-added services for international mail

    In addition to the product specified on the consignment barcode, you can also indicate requested value-added services. There are no value-added service barcodes for international mail. The value-added services are indicated by means of a sticker or printed code. Several value-added services can be combined if necessary (depending on the rules in the destination country).

    The following value-added services are available for international mail:

    Barcodes Available value-added services
    - Return receipt (AR)
    Personal delivery (RMP)1  Items for the blind (CEC)
    Registered (R)
    Yes Yes Yes
    PRIORITY Plus1 - - -

    1 Not available for all countries.

    Stickers for value-added services are available at

    For information about value-added services for international mail, see

    4.4 Overview of value-added service options for international mail

    Return receipt (AR)

    If you would like written confirmation of when and to whom a letter was delivered, mark it with the “Avis de réception” label (form. 236.03) or the corresponding printed code. The return receipt attached to the item will be signed by the recipient or other authorized person on delivery. The receipt will then be posted back to you as confirmation.

    • Fill out a return receipt (form 428.01)
    • The return receipt must be affixed to the back of the consignment.

    Return receipt (AR) and sticker available at:

    Personal delivery (RMP)

    A remettre en main propre

    If a letter is to be delivered only to a specific person, mark it with “A remettre en main propre”.

    • Items for personal delivery (RMP) may only be addressed to natural individual persons.
    • Write out the first name and last name of the recipient.
    • Personal delivery is not available in all countries, or in some only in combination with the return receipt (AR) value-added service.

    To check the availability and conditions for the personal delivery value-added service in individual countries, see

    Items for the blind (CEC)

    Cécogramme

    Consignments up to 7 kg to/from blind people, persons with visual impairments and institutions for the blind are delivered free of charge. Label these consignments with “Cécogramme”.

    • Items for the blind are always sent as PRIORITY mail and must be marked accordingly.

    For information about the items for the blind (CEC) value-added service, see

    5. Using delivery instructions

    5.1 Indicating delivery instructions for domestic mail

    Note the delivery information on the back

    Letter with ID check and letter with ID check/contract signing enable you to identify people and/or to obtain signatures through Swiss Post for contracts ordered by telephone or online. These products are provided in modular format on a contractual basis only. For more information, please contact your customer advisor.

    Information on Letter with ID check and Letter with ID check/contract signing:

    Return note

    The return note “Retour non recommandé” can be used for the products registered (R), Letter with ID check (ID) and Letter with ID check/contract signing (CT). Consignments with this note are processed in the standard returns channel.

    A Letter ID light or Letter ID data matrix code can be used in combination and also carries the information for the optical return note as a value-added service in the data matrix code (position 36). With a data matrix code, all instructions for returns that can be used for normal letters can also be used on these consignments. Please note that consignment tracking and liability claims are no longer possible for consignments with the return note “Retour non recommandé” while they are being returned.

    The return note can be integrated into the address, combined with the barcode or affixed as an envelope form. For more information, please refer to the section “Applying barcodes and data matrix codes”.

    6. Using barcodes for pallets

    6.1 Labelling pallets

    Labelling pallets and bulk containers

    Pallets and outer containers must be processed in accordance with Swiss Post’s current numbering system. They are first consolidated by pallets/bulk containers for each location (e.g. 8500), for each routing area (e.g. 85) and only when no further consolidation is possible by center (e.g. 8) and finally by pallet with remaining items (1–9).

    The following options are possible as shown using B Mail bulk mailing (addresses are white for A Mail, blue for a B Mail single item and green for OnTime Mail).

    Example: B Mail bulk mailing by center

    7. Using data matrix codes for letter mail

    7.1 Identification feature

    Data matrix codes for letter mail can be read only electronically. The condition for delivering a requested letter mail service with data matrix code is compliance with the guidelines described in this manual and mail that is suitable for machine processing. Swiss Post cannot process data matrix codes on consignments which are open, bulky or more than 2 cm thick.

    Data matrix codes used by Logistics Services for processing physical letter mail all start with the numerical sequence “75680” and are labelled as “postal data matrix codes”. Letters with postal data matrix codes that reach Logistics Services’ processing channel are identified and treated as mail items.

    With the data matrix codes, you can identify entire orders or individual items, track them during sorting and control them in returns processing. While Letter ID light uses static data matrix codes with uniform population, Letter ID allows each individual mailing to be tracked and managed in the returns channel.

    Letter ID

    • Uniqueness: each consignment for an order has a data matrix code with an individual consignment number
    • Dynamic production and individuality
    • Positions in the data matrix code that can be freely used by customers for their own purposes

    Letter ID light

    • Ambiguity: all consignments for an order have the same data matrix code with the same content
    • One-off production and duplication possible
    • Returns data are only available in the form of images (automatic data management not possible)

    Returns can be digitized, disposed of (simple or qualified) or redirected

    Address block function, more scope for design of consignments

    If you send letter mail with the identification feature, a square data matrix code is added to the franking zone next to the PP impression (A) or address window (B) (both placements possible).

    Important: The data matrix code is not a stamp. It merely marks the letter mail concerned.

    How to create the data matrix codes:

    1. Determine which type of data matrix code is best for your consignment processing. Either the static Letter ID light or the dynamic Letter ID, depending on which benefit you want to take advantage of. For more information on the benefits of Letter ID, visit www.swisspost.ch/letterid
    2. There are three ways to create the data matrix codes:
      • A. Create the data matrix code yourself with the “Create postage paid impressions” online service. You can find more information at www.swisspost.ch/online-services → “Create postage paid impression”.
      • B. Create the data matrix code with custom-developed software. You can find information on creating the data structure in the section “Generating data matrix codes”.
      • C. Create the data matrix code with the assistance of a service provider. You can find information on creating the data structure in the section “Generating data matrix codes”.
    3. Affix the data matrix code to the layout of your consignment.
    4. Quick postal check (obtain the final proof; contacts on page).

    Information on Letter ID and Letter ID light:

    Additional “Address block” function

    The size of the advertising zone on envelopes can be increased. You can also add overprints and colour gradients below the address field or to the right of it without paying a surcharge for special mail items. This enables your mailing items to stand out and makes them more effective. The precondition for this is affixing a data matrix code next to the address and with the additional “Address block” function.

    For more information on how to position the data matrix code with the additional “Address block” function, visit

    7.2 Letter with ID check and Letter with ID check/contract signing franking method

    Letter with ID check and letter with ID check/contract signing

    With the Letter with ID check (LID) and Letter with ID check/contract signing (LID-CS) services, you can simplify new customer acquisition. You enter the customer data via call centers or using the digital onboarding process. Swiss Post then identifies your customer, creates electronic copies of ID documents and obtains any contract signatures required. With automatic consignment tracking, you have your consignments under control at all times, and the consignment data is exchanged via the DataTransfer interface. You can easily download the ID images via the “Track consignments” web service and archive them in your own system.

    Billing is via Letter mail easy directly via the barcode. With an additional static or dynamic data matrix code, you can add additional controls that are relevant to you.

    Letter with ID check (LID) and letter with ID check/contract signing (LID-CS) are exclusive services for business customers with a billing relationship.

    Example: Layout of address label for Letter with ID check/contract signing including data matrix code

    How to create Letters with ID check or Letters with ID check/contract signing

    1. Contact your customer advisor.
    2. The design guidelines can be found in the factsheet with the requirements for designing Letters with ID check and Letters with ID check/contract signing at www.swisspost.ch/bmv-bmid
    3. Design your address label for the Letter with ID check or Letter with ID check/ contract signing with the “Create postage paid impressions” online service.
    4. Quick postal check (obtain the final proof; contacts on page).
    5. A technical connection to DataTransfer is necessary. You can obtain the details from your customer advisor.

    Information on Letters with ID check and Letters with ID check/contract signing:

    Information on the “Create postage paid impressions” online service:

    7.3 Election and voting consignment franking method

    Election and voting consignment

    Swiss Post’s “Election and voting consignment” product is designed to meet the specific requirements for election and voting documents. For election and voting consignments, two different datamatrix codes are used: one for delivery to the citizens and one for the return to the municipality.

    The following options for usable data matrix codes are available on the outward and return route:

    Sending to the citizen 9×9 mm size: left on the voting card

    For municipalities and cantons: static data matrix code. Download from www.swisspost.ch/election-and-voting → “Designing, packaging and addressing”.

    For parishes: static data matrix code. Contact your customer advisor.

    For municipalities and cantons: dynamic data matrix code. Contact your customer advisor.

    Returning to the municipality 11×11 mm size: right on the voting card

    For municipalities and cantons: Without using the business reply label (GAS) service – static data matrix code. Download from www.swisspost.ch/election-and-voting → “Designing, packaging and addressing”.

    For parishes: When using the A Mail/B Mail business reply label (GAS) service – static data matrix code. Contact your customer advisor.

    For municipalities and cantons: When using the A Mail/B Mail business reply label (GAS) service – static data matrix code. Contact your customer advisor.

    Example: Layout for an A5 voting card for envelopes with a window on the left without business reply label

    Dynamic data matrix codes can also be implemented for election and voting consignments. More information can be found in the “Layout of data matrix codes” section and onwards.

    To produce the voting card:

    1. Please refer to the “Election and voting consignment” factsheet at www.swisspost.ch/election-and-voting for precise design guidelines for the voting card.
    2. If you use the business reply label (GAS) serviceto return election and voting documents, the business reply label will be invoiced via the static data matrix code. Contact your customer advisor for more details.
    3. Create the layout for your voting card.
    4. Quick postal check (obtain the final proof; contacts). To do so, send Swiss Post a physical mailing sample with envelope and voting card.

    Information about election and voting consignments:

    7.4 Business reply label with data matrix code franking method

    Business reply label data matrix code

    With business reply labels, your customers can react to offers, surveys and campaigns quickly and easily without paying any postage, and they can get in touch with you.

    The business reply label data matrix code does not just make the advertising zone bigger: the stamp can feature an image or a corporate logo or simply be left blank. The data matrix code can also be used to evaluate the response to individual campaigns in the Swiss Post Customer Center.

    Only the consignments that are actually returned are billed.

    • (A) Data matrix code
    • (B) You can create an individual design for the stamp’s image (in colour or black and white) or leave it blank.
    • (C) Invoice reference number (8-digit); assigned by Swiss Post and used for billing purposes. You can find it on your invoices.
    • (D) Order number (6-digit); can be freely chosen by the customer to distinguish between different campaigns.

    To create a data matrix code for business reply labels:

    1. Apply for a billing relationship with Swiss Post (if you do not already have one).
    2. Design the postage paid impression using the “Create postage paid impressions”
      online service
    3. Get a final proof for the entire layout (contacts)
    4. Have the business reply labels with data matrix code printed

    Information on business reply labels with data matrix codes:

    Information on the “Create postage paid impressions” online service:

    7.5 Global Response data matrix code franking method

    Global Response data matrix code

    For international Global Response business reply labels, use the same data matrix code as for your domestic business reply labels. This means that individual campaigns can be evaluated in the Swiss Post Customer Center.

    Only the consignments that are actually returned are billed.

    To implement Global Response data matrix codes, proceed as follows:

    1. Contact your customer advisor.
    2. Generate postage paid impression in the “Create postage paid impressions” online service
    3. Quick postal check (obtain the final proof; contacts on page).
    4. Hire the printer of your choice to print business reply labels with a data matrix code.

    Information on Global Response data matrix codes and print templates for the franking zone:

    Information on the “Create postage paid impressions” online service:

    8. Applying barcodes and data matrix codes

    8.1 General information

    Letter mail usually offers very little space for design elements. Follow the placement instructions to ensure that your barcodes and data matrix codes are clearly readable.

    The placement instructions vary depending on whether you are

    • using window envelopes
    • using address labels
    • applying barcodes and data matrix codes directly onto the item

    Barcodes and data matrix code on a single item

    Important: Provided there is sufficient space, you can use a shipping barcode, value-added service barcodes, delivery instructions and a data matrix code on a single item. However, only one postal data matrix code may be affixed to each item. Follow the respective instructions for all the codes used.

    Addressing and franking design

    Observe Post CH Ltd’s general specifications for the design of addressing and franking elements:

    “Letter creation from A-Z” specifications:

    “PP franking” factsheet:

    Marked as mail item

    Within the framework of the new postal legislation, which also contains specifications concerning consignment marking, all franking must also include the Swiss Post logo or the note “Post CH Ltd”.

    The Swiss Post logo is available at www.swisspost.ch/template.

    Sender details

    Complete and correctly placed sender details provide clarity to the recipients and allow undeliverable consignments to be returned without delay. There are various options for the placement of the sender details on letter mail.

    • Complete sender details include (company) name, street or the P.O. Box, and the postcode and town.
    • Compliance with the assigned zones for placements on the front (address side) of the consignment ensures that there is no confusion between the sender and recipient address during processing in the sorting systems.
    • Sender details can be placed on the front or on the back.
    • The sender address must always be placed higher than the recipient address.
    • The sender note can also be placed above the recipient address. In this case, it must be separated from the recipient address by a horizontal separator line and the sender address must be in a single line. For consignments with a barcode, the sender address can also be placed to the right of the barcode.
    • If the sender logo includes information on only the town, phone number, e-mail or web address (without street name, P.O. Box number or postcode), it may also be placed outside the sender zone in the advertising zone.
    • With complete sender details on the consignment, you will receive returned items without delay, without them having to be routed through our enquiry services, which means you will receive them unopened.
    • The following elements are not optically recognizable senders:
      • Data matrix codes
      • Invoice reference or debtor numbers
      • Company logos from a branch structure without adding the branch

        In certain circumstances, such details can lead to the consignment being opened in order to determine the sender in the event of returns.

    Information on the correct layout for your consignment can be found in the “Letter creation from A-Z” specifications:

    8.2 Customer codes on letter mail

    Applying non-Swiss Post codes

    Customers’ own codes may only be positioned in the advertising zone.

    One-dimensional or multi-dimensional codes which are not used by Post CH Ltd for preparing items for mailing may not be applied in the postal zones (franking zone, scanning zone, coding zone). These codes include, among others, QR codes, Aztec codes, MaxiCodes or barcodes or data matrix codes which are non-compliant with Swiss Post.

    In addition to the postal codes, each consignment may feature no more than one customer-owned code and one customer-owned barcode.

    For information on letter design, see

    9. Applying barcodes

    9.1 With window envelopes

    If you use window envelopes with a window size of at least 100 × 45 mm, you can print the data matrix codes directly onto the contents of the letter.

    General information

    Make sure that

    • you leave a gap of at least 5 mm between the recipient address and other text or design elements, at least 2 mm between the data matrix code and recipient address, and at least 3 mm between the PP divider and the recipient address
    • the barcodes, data matrix codes and the address do not slip out of the address window if the contents move around within the envelope
    • no other text and design elements appear in the address window if the contents move around in the envelope

    For information on letter design, see

    Special conditions applicable to international mail with window envelopes

    • The PP impression must be framed (see table).
    • PRIORITY Plus barcodes cannot be placed in an address window.
    • Barcodes for international goods consignments (Untracked) cannot be placed in an address window.

    Placement of shipping barcodes for domestic and international mail

    • Place the shipping barcode horizontally, above the recipient address.
    • Maintain a distance of at least 5 mm to the barcode elements and the recipient address.
    • Letters with barcode can also be combined with a Letter ID light or Letter ID data matrix code.
    Example: Window envelope for domestic consignment

    For information on letter design, see

    Placement of value-added service barcodes for domestic mail

    • Place the value-added service barcodes vertically, to the right of the recipient address and the shipping barcode.
    • Maintain a distance of at least 5 mm from the recipient address.
    • Maintain a distance of at least 10 mm from the shipping barcode.
    • If you are using more than one value-added service barcode, maintain a distance of at least 10 mm between them.

    Positioning delivery instructions for domestic mail

    • Always place the delivery instructions outside the window.
    • Delivery instructions may be placed to the left, right or above the window.

    If you are using preprinted labels (PostLabels):

    • Do not position the labels so that they overlap, but leave a small gap between them.

    Placing the return note for Registered Switzerland (R)

    The “Retour non recommandé” return note is placed next to the barcode at a distance of at least 5 mm. In addition to the note, the information in the data matrix code must be affixed to ensure machine recognition. This can also be carried out with an IFS overprint (select “RNR” value-added service on the IFS).

    For envelope forms, the return note is placed between the franking and address zones. You can find design templates at www.swisspost.ch/template. It is mandatory to comply with the templates; in the event of deviations, a data matrix code must also be added.

    Example: Envelope form for C5 window envelope

    Indicating value-added services for international mail

    • Indicate the the value-added services above the recipient address.
    • Maintain a distance of at least 10 mm from the barcode elements.
    • Maintain a distance of at least 5 mm from the recipient address.

    The personal delivery (RMP), items for the blind (CEC) and optionally also return receipt (AR) value-added services are indicated solely by a text endorsement (see “Design of value-added service codes for international mail”). The placement rules above also apply.

    9.2 Printing barcodes directly onto letter mail

    If you do not use envelopes or use envelopes without windows, you can print the barcodes on address labels or directly onto the envelope.

    Tip: Any existing infrastructure for generating parcel labels can also be used for letter mail – with adapted software and suitable labels.

    You can use the free “Barcode” web service to generate address labels that include barcodes. To activate the “Barcode” web service, you must be registered with Post CH Ltd as a business customer (see “Registering as a business customer”).

    General information

    Make sure that

    • you leave a gap of at least 10 mm between the recipient address and the shipping barcode.

    For information on letter design, see

    Special conditions applicable to international mail with printed codes

    • The PP impression must be framed (see table).
    • The customer-specific PRIORITY Plus consignment barcode is only allowed in conjunction with an international harmonized label. For instructionson creating the harmonized label, please contact your international customer advice service or international@post.ch.

    Placement of shipping barcodes for domestic and international mail

    • Place the shipping barcode horizontally, above the recipient address.
    • Maintain a distance of at least 10 mm between the barcode elements and the recipient address.
    • Letters with barcode can also be combined with a Letter ID light or Letter ID data matrix code.
    Example: Letter print for domestic consignment

    For information on letter design, see

    Placement of value-added service barcodes for domestic mail

    • Place the value-added service barcodes vertically – either to the right or left of the recipient address and the shipping barcode.
    • Maintain a distance of at least 10 mm from the shipping barcode.
    • If you place value-added service barcodes to the left of the recipient address, maintain a distance of at least 20 mm between the recipient address and the value-added service barcode.
    • If you place value-added service barcodes to the left of the recipient address, maintain a distance of at least 2 mm between the recipient address and the value-added service barcode.
    • If you are using more than one value-added service barcode, maintain a distance of at least 10 mm between them.

    If you are using preprinted labels (PostLabels):

    • Do not position the labels so that they overlap, but leave a small gap between them.

    Positioning delivery instructions for domestic mail

    • Position the delivery instructions horizontally above the consignment barcode.
    • Maintain a gap of at least 2 mm between the shipping barcode and the delivery instructions.
    • Alternatively, if you are not using any value-added service barcodes, you can position the delivery instructions to the right of the shipping barcode. Maintain a gap of at least 5 mm between the shipping barcode and the delivery instructions.

    Placing the return note for Registered Switzerland (R)

    The “Retour non recommandé” return note is placed next to the barcode at a distance of at least 5 mm.

    In addition to the note, the information in the data matrix code must be affixed to ensure machine recognition. This can also be carried out with an IFS overprint (select “RNR” value-added service on the IFS).

    For envelope forms, the return note is placed between the franking and address zones. You can find design templates at www.swisspost.ch/template. If it is not possible to comply with the design templates exactly, it is necessary to combine this with a data matrix code.

    Example: Envelope form for C5 window envelope

    Indicating value-added services for international mail

    Value-added services are indicated above the recipient address.

    • Maintain a distance of at least 10 mm from the barcode elements.
    • Maintain a distance of at least 10 mm from the recipient address.

    The personal delivery (RMP), items for the blind (CEC) and optionally also return receipt (AR) value-added services are indicated solely by a text endorsement (see “Design of value-added service codes for international mail”). The placement rules above also apply.

    9.3 Letter with ID check and letter with ID check/contract signing

    Special envelopes and address labels are used for Letter with ID check and Letter with ID check/contract signing.

    Envelope front:

    Envelope back:

    Example: Letter with ID check/contract signing

    Information on Letters with ID check and Letters with ID check/contract signing and design guidelines:

    10. Applying data matrix codes

    10.1 With window envelopes

    If you use window envelopes with a window size of at least 100 × 45 mm, you can print the data matrix codes directly onto the contents of the letter.

    General information

    Make sure that

    • you leave a gap of at least 5 mm between the recipient address and other text or design elements, at least 2 mm between the data matrix code and recipient address, and at least 3 mm between the PP divider and the recipient address 
    • the barcodes, data matrix codes and the address do not slip out of the address window if the contents move around within the envelope 
    • no other text and design elements appear in the address window if the contents move around in the envelope 
       

    For information on letter design, see

    Special conditions applicable to international mail with window envelopes

    • The PP impression must be framed (see table).

    Placing data matrix codes

    • Place the Letter ID light or Letter ID data matrix codes to the right of the recipient address.
    • Maintain a distance of at least 2 mm from all adjacent text and design elements on all sides of the data matrix code.
    • Place the data matrix code with the additional “Address block” function to the right of the recipient address. The data matrix code and the recipient address must be in a field with a width of max. 90 mm.
    • Make sure that the letter content cannot move around too much. Otherwise, the data matrix code can suddenly slide away from the window, which means that it cannot be processed.
    Example: Window size 100 × 45 mm

    PP impression for window envelopes

    Markings and design elements

    PP impression for window envelopes (continued)

    Markings and design elements (continued)

    10.2 With data matrix codes printed directly onto mail

    If you do not use envelopes or use envelopes without windows, you can print the data matrix codes on the address labels or directly onto the envelope.

    Tip: Tip: Any existing infrastructure for generating parcel labels can also be used for letter mail – with adapted software and suitable labels.

    General information

    Make sure that

    • you leave a gap of at least 10 mm between the recipient address and other text or design elements.

    For information on letter design, see

    Special conditions applicable to international mail with printed codes

    • The PP impression must be framed (see table).

    Placing data matrix codes

    • Place the Letter ID light or Letter ID data matrix codes in the franking zone. This is at the top right of the letter.
    • Maintain a distance of at least 2 mm from all adjacent text and design elements on all sides of the data matrix code.
    Example: envelopes without window for domestic consignment

    PP impression for printed codes

    PP impression for printed codes (continued)

    Markings and design elements

    PP impression for printed codes (continued)

    Markings and design elements (continued)

    10.3 Letter with ID check and letter with ID check/contract signing

    For Letters with ID check (LID) and Letters with ID check/contract signing (LID-CS), the data matrix codes are printed directly on the address label. In addition to barcode 128, a data matrix code can be used to add the additional “Address block” function, instructions for returns and other elements for consignment management.

    • The layout is fixed and may not be changed.
    • The data matrix code must always be visible.
    Example: Layout of letter address label with ID check and data matrix code

    Information on Letters with ID check and Letters with ID check/contract signing:

    10.4 Election and voting consignments

    The data matrix codes on election and voting consignments are printed to the right of the address on the voting card itself. The data matrix code is placed in line with the sixth address line, and is surrounded by a quiet zone of at least 2 mm. If the address has fewer than six lines, the data matrix code is placed on the lowest address line.

    • The layout is fixed and may not be changed.
    • The data matrix code must always be visible.
    Example: Layout for an A5 voting card for envelopes with a window on the left without business reply label

    Information about election and voting consignments:

    10.5 Data matrix codes on business reply labels

    For business reply labels, the data matrix code is a fixed part of the PP impression. More information on the layout can be found at www.swisspost.ch/gas or in the business reply labels factsheet.

    Note: The postal prepayment impression applies exclusively to consignments within Switzerland. For consignments from abroad, use the “Global Response” product.

    Information on business reply labels with data matrix codes can be found at:

    10.6 Global Response data matrix code

    For Global Response, the data matrix code is a fixed part of the PP impression.

    • The layout of the postal prepayment impression is fixed and may not be changed.
    • Use the same data matrix code as for your domestic business reply labels.

    Information on Global Response data matrix codes and design templates for the franking zone:

    11. You send CO₂-offset consignments

    11.1 You send CO2-offset consignments

    The “pro clima” consignment label indicates CO2-offset consignments by SwissPost. It may be affixed to all consignments processed by Swiss Post. As of 1 January 2021, Swiss Post sends all consignments by “pro clima” shipment and assumes responsibility for the CO2-offsetting surcharges.

    The standard Swiss Post design requirements for the relevant field of application must be observed. The “pro clima” shipment label and its elements shall be understood as a single entity and may not be modified.

    For information on letter design, see

    Example: Registered Switzerland label with “pro clima”
    Example: Registered International label with “pro clima”

    Colour definitions

    Two colour versions of the “pro clima” Shipment label can be used, coloured or black, in accordance with the production specifications for the relevant field of application. Where possible, the colour variant should be used. The colour label can be printed in full colour or in 2-tone.

    Application size

    The original labels are 60 mm wide. They are scalable without any loss of quality. For a width of less than 15 mm, the URL can be omitted on addressed domestic letters. When printing on PromoPost consignments, the minimum dimension of 15 mm including URL and “Shipment” indication must be respected.

    Language versions

    The “pro clima” – Shipment label is available in four languages.

    File formats

    Depending on use, the label is available in EPS file format (e.g. for offset printing) or as a JPG.

    12. Options for generating barcodes and data matrix codes

    12.1 Options for generating barcodes

    The most efficient way of applying barcodes to your mail will depend on the volume of mail, the software and hardware available to you, and your data flow requirements. Your Post CH Ltd customer advisor will be pleased to help you evaluate the most suitable solution.

    Generating barcodes with a mail processing system

    If you have a mail processing system (hardware and software solution for automated mail creation), you can have the barcodes printed at the same time you address your letter mail.

    Tip: If you already use a similar system for sending parcels, it can also be used for sending letters – with adapted software and suitable labels.

    You can obtain information about mail processing systems suitable for dispatching mail from your customer advisor or directly from a vendor:

    Generating barcodes with standard software

    Various standard software packages can generate barcodes that meet Post CH Ltd’s specifications. The vendors also usually handle customization to your particular needs and processes.

    Generating barcodes with custom-developed software

    If you develop your own software solution or wish to integrate barcode generation into an existing software environment, the technical data can be found in the “Generating barcodes” section.

    Important: Before they are used for the first time, all barcodes, data matrix codes and barcode lists you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use. This ensures that letter mailings can be processed later without problems (see “Homologation”). Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect barcodes or data matrix codes.

    Printing of barcodes with the franking system IFS

    Consignment barcodes can be printed directly with the franking using the franking system IFS.

    Information about the franking system IFS:

    Generating barcodes on address labels using the “Barcode” web service

    You can use the “Barcode” web service to generate address labels including Swiss Post barcodes in a machine-readable format (XML). The “Barcode” web service always offers you the currently valid basic and associated value-added services.

    Information on the “Barcode” web service:

    Generating barcodes via the “WebStamp” online service

    With the “WebStamp” online service, you can generate your own PP impressions on the Internet. Barcodes can be purchased for Registered mail and A Mail (domestic and international consignments) via WebStamp.

    Information on the “WebStamp” online service:

    Use of preprinted barcodes (PostLabels)

    If you use barcodes, but do not want to produce them yourself, Post CH Ltd can provide you with preprinted self-adhesive labels (PostLabels) free of charge.

    Information on the “Order barcodes & shipping labels” online service:

    Barcode labelling with Swiss Post franking

    The affixing of barcodes and address registration can be obtained as part of the “Swiss Post franking” service.

    For information on labelling and address registration, see

    Generating barcodes on address labels via the “Create postage paid impressions” online service

    With the “Create postage paid impressions” online service, address labels can be generated for the products Letter with ID check and Letter with ID check/contract signing.

    12.2 Options for generating data matrix codes

    The most efficient way of applying data matrix codes to your mail will depend on the volume of mail, the software and hardware available to you, and your data flow requirements. Your Post CH Ltd customer advisor will be pleased to help you evaluate the most suitable solution.

    Generating data matrix codes with a mail processing system

    If you have a mail processing system (hardware and software solution for automated mail creation), you can attach data matrix codes at the same time you address your letter mail.

    Tip: If you already use a similar system for sending parcels, it can also be used for letter mail – with adapted software and suitable labels.

    You can obtain information about mail processing systems suitable for dispatching mail from your customer advisor or directly from a vendor:

    Generating data matrix codes with standard software

    Various standard software packages can generate data matrix codes that meet Post CH Ltd’s specifications. The vendors also usually handle customization to your particular needs and processes.

    Generating data matrix codes with custom-developed software

    If you develop your own software solution or wish to integrate data matrix code generation into an existing software environment, the technical data can be found in the “Generating data matrix codes” section.

    Important: Before they are used for the first time, all barcodes, data matrix codes and barcode lists you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use. This ensures that letter mailings can be processed later without problems (see “Homologation”). Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect barcodes or data matrix codes.

    Generating data matrix codes via the “Create postage paid impressions” online service

    You can use the “Create postage paid impressions” online service to quickly and easily create PP impressions with the Letter ID light and Letter ID data matrix codes, as well as PP impressions for business reply labels.

    Information on the “Create postage paid impressions” online service:

    13. Posting letters with barcode

    13.1 Overview of mailing options

    The mailing procedure varies, depending on how the barcodes have been applied to your mail.

    Using preprinted barcode labels (PostLabels)

    If you obtain the barcodes as labels (PostLabels) from Post CH Ltd, you should use barcode lists “21” (form 210.17) or “23” (form 210.16). You can obtain these in paper form from your acceptance point or customer advisor. Alternatively, you can get them online as a PDF file and print them out yourself.

    Ordering barcodes:

    To download barcode lists, visit:

    To enter mail on the barcode lists

    1. Stick the smaller duplicate barcodes, (A) located on the sheet of stickers next to the corresponding shipping barcode (B) on the barcode lists. If there are not enough fields, use additional barcode lists to stick on the remaining barcodes.
    2. Make a note of which consignment barcode you used for which item in case you subsequently need to check which items you sent to a particular recipient.
    3. Hand in the barcode lists, filled out and with the stickers affixed, together with the corresponding items for posting to the acceptance point. You will be given a receipted copy as proof of posting.

    Note: Lists “21” and “23” fulfil the same purpose, but they are handled slightly differently.

    For information about selecting the appropriate list, see

    List “21”

    To enter mail on list “21”

    • On list “21” (form 210.17), stick only the first and last duplicate for a consignment. Select the appropriate column for domestic and international mail in each case (“Switzerland” (A) , “R-international” (B) ).
    • If you do not use up all successive shipping barcodes for one consignment, stick the duplicates of the unused shipping barcodes on the fields provided for this purpose on the bottom half of the list (C). This is important so that they are not recorded as a mailed consignment.

    List “23”

    To enter mail on list “23”

    • On list “23” (form 210.16) stick all the duplicates for a consignment.
    • Mark either “Domestic CH” (A) or “R-international” (B) to indicate whether it is domestic or international mail.

    Delivery slip for court documents (not incl. Court Document Online) “22”

    To enter court documents on list “22”

    On list “22” (form 222.39), enter the following information:

    • For (A), check the language you require.
    • Enter the sender’s address in field (B). If the feeder is not the same as the sender’s address, enter the feeder’s address in (C).
    • Stick on all the duplicates for a consignment.
    • For better allocation of the individual consignment, include a note in (D).
    • Enter the full recipient address in (E).

    Using the “WebStamp” online service

    With the “WebStamp” online service, you can generate your own PP impressions on the Internet. Barcodes can be purchased for Registered mail and A Mail (domestic and international consignments) via WebStamp. As soon as you have purchased the required franking, you will have two PDF files to download:

    1. Valid WebStamps
    2. Delivery note in duplicate

    Business customers have the option of generating a manual delivery note if required. When doing so, the mailings which will be handed over at the post office counter must be selected in WebStamp.

    The delivery note must be handed in at the post office counter along with the franked mailings.

    Letter mail easy in the “WebStamp” online service

    With the “WebStamp” online service, business customers can create barcodes that are billed only after effective delivery, so-called Letter mail easy. For this service, you must have a billing relationship with Swiss Post and a separate franking licence number, which you can order from your customer advisor or the Swiss Post Contact Center. When generating the stamps, a list of barcodes will be produced which must be handed in at the branch counter with all mailings.

    Information on the “WebStamp” online service

    Generating the barcodes yourself

    If your company generates the barcodes itself, you have two options when mailing consignments.

    Consignments with barcode lists

    You apply barcodes to your mail items and hand them in together with the printed barcode list (barcode list “21” [form 210.17], barcode list “23” [form 210.16] or delivery note for court documents “22”) at the acceptance point. The same barcode may be used only once within any six month period.

    Consignments with DataTransfer

    Post CH Ltd provides the online DataTransfer interface for secure and efficient exchange of dispatch and billing data.

    DataTransfer offers

    • a convenient alternative to consignments with barcode lists
    • simpler billing of PP-franked letter mail without barcode (see “Creating a dispatch list via DataTransfer”)
    • data submission for address verification with Letter ID
    • receipt of reports on returned consignments

    Mailing process with DataTransfer

    1. Using your software solution, you generate a file with dispatch data (XML format) for letters with barcode.
    2. If you send consignments without a barcode, you can also deliver the invoicing data in a file.
    3. You send this file by SFTP, e-mail or sedex to Swiss Post’s online DataTransfer interface.
    4. You receive a completed online delivery slip (LSO) as a PDF file by SFTP or e-mail. If you have also provided a data file for the invoice, you will receive an additional delivery slip (AVZ) for invoicing.
    5. Print the dispatch list or delivery note and hand it in together with the corresponding letters to your acceptance point. You will be given one signed copy of each original as proof of mailing. The customer copy confirmed by the post office is available in the “My Post” customer portal and can also be requested as an e-mail.

    You also have the option of subscribing to various reports, which provide you with updates by e-mail or SFTP on the current delivery status of your mail every 24 hours.

    Information about DataTransfer:

    Technical specifications and registering for DataTransfer:

    Example of an online delivery slip (LSO)

    Using barcode labels applied by Swiss Post

    If you do not want to apply the barcodes yourself, this can also be done at the acceptance point (preparing your consignments and address registration with Swiss Post franking). If you have any questions, please contact your customer advisor.

    Information on the “Swiss Post franking” service:

    For information about Swiss Post’s barcode labelling service, see

    Online tracking (Track & Trace)

    You can use the online Track & Trace service to conveniently track online letters with barcode, international consignments, pallets, letters with Letter ID, nondeliverable letters and parcels, Swiss Express and courier consignments. You have the following options for consignment tracking:

    “Track consignments” online service

    You can view posting, sorting and delivery events quickly and without logging in on Swiss Post’s website or in the Post-App. Logging in to the Swiss Post Customer Center provides additional search options and information (such as the recipient signature  for registered letters).

    Information on the “Track consignments” online service:

    “Track consignments” web service

    Sorting and delivery events can be shown directly in the web shop or customer system.

    Information on consignment tracking and technical support for the web service:

    Swiss Post liability

    Swiss Post is liable for loss, damage or incorrect delivery of letter mail with barcode (registered (R), court document (GU), debt collection document (BU), Letter with ID check (LID) and Letter with ID check/contract signing (LID-CS)).

    Retain your proof of posting or at least the consignment number, as you will need to present it if you ever wish to make a claim. See also the General Terms and Conditions (GTC) of Post CH Ltd.

    General Terms and Conditions (GTC) for postal services:

    14. Posting PP-franked letter mail

    14.1 Dispatch list for PP-franked mail

    PP-franked letter mail without barcodes is billed on the basis of a dispatch list (AVZ) which is created for every consignment posted. To facilitate the billing of PP-franked mail, Swiss Post provides the “Letters dispatch list” online service or the DataTransfer online data interface.

    PP-franked letters with barcode have a Letter mail easy franking licence number in the barcode. Billing is based on the processing data recorded by Swiss Post. Dispatch lists (AVZ) are therefore not generated for these consignments.

    Important: The Letter ID light and Letter ID franking methods may only be used via the “Letters dispatch list” online service or the DataTransfer online data interface.

    For information about the billing of PP-franked mail, see

    Creating a dispatch list via the “Letters dispatch list” online service

    You can create your dispatch lists for PP-franked letter mail simply and free of charge via the “Letters dispatch list” online service in the Swiss Post Customer Center.

    Important: When creating the dispatch list, select “PP franking with Letter ID” for consignments with the Letter ID franking method and enter the order number included in the data matrix code.

    Information concerning the “Letters dispatch list” online service:

    Creating a dispatch list via DataTransfer

    Post CH Ltd provides the online DataTransfer interface for secure and efficient exchange of dispatch and billing data.

    DataTransfer offers you

    • a convenient alternative to consignments with barcode lists
    • simpler billing of PP-franked mail
    • data submission for address verification with Letter ID
    • receipt of reports on returned consignments

    Creating a dispatch list via DataTransfer

    1. Using your software, you generate a file with the billing data (XML).
    2. You send this file by SFTP, e-mail or sedex to Swiss Post’s online DataTransfer interface.
    3. You receive a completed delivery slip (dispatch list) by SFTP or e-mail as a PDF file.
    4. Print the dispatch list or delivery note and hand it in together with the corresponding letters to your acceptance point. You will be given one signed copy of each original as proof of posting. The customer copy confirmed by the post office is available in the “My Post” customer portal and can also be requested as an e-mail. You also have the option of subscribing to various reports, which provide you with updates by e-mail or SFTP on the current delivery status of your mail every 24 hours.

    Information about DataTransfer:

    Technical specifications and registering for DataTransfer:

    datatransfer@swisspost.ch
    www.swisspost.ch/datatransfer → Technical DataTransfer support
    – via your customer advisor

    15. Generating barcodes

    15.1 Basics

    Introduction

    Barcodes are one-dimensional, machine-readable, graphical representations of data.

    • Barcodes consist of parallel strips of alternating dark bars and light spaces, the so-called barcode elements.
    • The narrowest element is termed a “module”, and its width in millimetres is the “module width”.
    • The width of all wider elements is always a multiple of the module width. Most barcodes use two or four different element widths.
    • The module ratio specifies the number of times the narrowest element can fit into the widest element. With a module ratio of 4:1, the widest bar is four times the width of the narrowest one. If a code with four element widths is used, the intermediate elements are either two or three times the width.
    • The individual digits and characters of a barcode are represented as a unique sequence of elements of different widths. Exactly how they appear depends on the character set used.
    • A barcode always begins with a start character and ends with a stop character. These contain information about the type of barcode, the character set used and the direction of scanning.

    Quiet zones

    Quiet zones are the blank areas around the barcodes that must be left free of any printing. This ensures that there is sufficient distance from other barcodes, text or design elements that could interfere with scanning.

    Barcode 128

    Shipping and value-added service barcodes are based on the standardized barcode 128 symbology. This barcode is licence-free, widely used and supported by many software programs.

    Character sets

    Barcode 128 provides various character sets to represent the data. Character sets C and B are used for Post CH Ltd letter mail.

    Character set C (numeric)

    Each character in this set consists of a pair of digits with a value from “00” to “99”. It is therefore possible to assign two digits to each character, which allows the data density to be doubled. The barcode is then shorter.

    Character set C is used for:

    • Shipping barcodes for domestic mail
    • Value-added service barcodes
    Character set B (alphanumeric)

    The alphanumeric character set B consists of individual letters, digits and special characters. Compressed representation is not possible. The barcode is thus longer.

    Character set B is used for:

    • Shipping barcodes for international mail
    • Value-added service barcodes (old version)

    Module ratio

    Barcode 128 uses four different element widths with a module ratio of 4:1.

    Technical requirements for printing barcodes

    Your barcodes will be legible if you comply with the following specifications:

    Printer resolution

    Use a printer with a physical print resolution of at least 600 dpi (dots per inch).

    Module width

    At a minimum print resolution of 600 dpi, the module width must be between 0.335 and 0.7 mm.

    Printing

    The bars must be printed using a matt black ink with even coverage and good edge definition.

    Print contrast signal (PCS)

    The contrast factor (PCS, dimensionless value according to DIN EN 797) must be greater than 0.7 for a wavelength range of between 620 and 900 nm. Properly printed black codes on light matt papers will be able to reliably achieve this contrast factor.

    Opacity

    The opacity of the label material must be at least 0.75% (DIN 53 146, ISO 1831). This value may be lower if the surface of the mail item is white and is not patterned or textured.

    Quality standard

    The print quality must be at least grade B according to DIN EN ISO/IEC 15416.

    Note: If you use a modern laser printer to print your barcodes on pure white paper, they will usually meet these requirements.

    15.2 Generating shipping barcodes for domestic mail

    Specification

    Shipping barcodes for domestic mail are created in compliance with the following specification:

    Type Character set Standard
    Barcode 128 Character set C (numeric) ISO/ IEC 15417

    Data population

    Data structure

    Shipping barcodes for domestic mail comprise:

    • the start character (value “105”)
    • the 9 digit pairs of information content
    • the check digit pair
    • the stop character (value “106”)
    Example:
    105 Start character
    98 Domestic letter identifier Information content
    42 Franking licence or product code and franking licence
    10
    31
    78
    00 Consignment number
    00
    03
    01
    40 Check digit pair (barcode 128C)
    106 Stop character

    Positions 1 to 3: start character (3 positions)

    The value “105” signifies character set C.

    Positions 4 and 5: identifier (2 positions)

    Post CH Ltd has designated identifier “98” for letter mail.

    Positions 6 to 13: franking licence (8 positions) or product code (2 positions) and franking licence (6 positions)

    The franking licences are issued by Swiss Post and identify the individual customer. The data structure varies depending on the product selected:

    Product Data structure
    Registered (R) XXXXXXXX (franking licence)
    A Mail Plus (A+) “01” (product code) and XXXXXX (franking licence)
    Dispomail (A) “02” (product code) and XXXXXX (franking licence)
    Court document (GU) “03” (product code) and XXXXXX (franking licence)
    Electronic cash on delivery (BLN) “04” (product code) and XXXXXX (franking licence)
    Debt collection documents (DD) “05” (product code) and XXXXXX (franking licence)
    Letter with ID check/contract signing Sent (CT) “07” (product code) and XXXXXX (franking licence)
    Letter with ID check/contract signing Return (A+) “08” (product code) and XXXXXX (franking licence)
    Letter with ID check Sent (ID) “09” (product code) and XXXXXX (franking licence)
    Letter with ID check Return (A+) “08” (product code) and XXXXXX (franking licence)

    Positions 14 to 21: consignment number (8 positions)

    The eight-digit consignment number is assigned for each consignment in ascending order or according to a freely definable system (value range 00000001 to 99999999). It is always entered starting on the far right of the reserved barcode positions and any remaining free positions are padded with zeroes. Each consignment number must be unique within a period of 180 days, i.e. it may be assigned only once during this period.

    Positions 22 to 23: check digit pair

    Positions 24 to 26: stop character (3 positions)

    Value “106”

    Barcode modules

    The start character and the digit pairs each comprise 11 modules, split into 3 bars and 3 spaces. The stop character comprises 13 modules, split into 4 bars and 3 spaces.

    Representation size

    The representation size of the barcodes is obtained by multiplying the number of modules by the module width:

    Number of characters Number of modules
    1 start character at 11 modules 11 modules
    9 digit pairs at 11 modules each 99 modules
    1 check digit pair at 11 modules 11 modules
    1 stop character at 13 modules 13 modules
    Total 134 modules

    Representation size = number of modules × module width 134 modules × 0.335 mm = 44.9 mm

    15.3 Layout of shipping barcodes for domestic mail

    Structure of shipping barcodes for domestic mail

    Shipping barcodes for domestic mail comprise:

    • (A) the horizontally printed product code (capital letters)
    • (B) indication of the branch at the domicile (postcode and town)
    • (C) the horizontally printed barcode
    • (D) the human-readable text showing the information content of the shipping barcode. To assist interpretation, the individual sections are marked off with dots. The dots mark the letter mail identifier, product designation, franking licence and consignment number sections
    • (E) the blank quiet zones around the barcode. These areas must be left blank so that the barcode can be reliably read
    • (F) optional: the horizontally printed full-text product designation
    • (G) optional: the Swiss Post logo (as long as the logo or the Post CH Ltd text is not already on the consignment). The Swiss Post logo is available at www.swisspost.ch/template.

    In the case of PP-franking, the shipping barcode for domestic mail also includes: (H) the postage paid impression “PP”.

    Dimensions

    The following dimensions must be observed so that the shipping barcodes for domestic mail can be reliably read:

    Key Description Dimension
    A Module width from 0.335 mm (see “Introduction”)
    B Module ratio 4:1 (see “Introduction”)
    C Module height At least 5 mm
    D Distance between branch at domicile and barcode At least 1 mm
    E Distance between PP impression and barcode At least 1 mm
    F Distance between product code and barcode At least 5 mm
    G Trailing quiet zone At least 8 mm
    H Distance between barcode and human-readable information At least 1 mm
    I Distance between human-readable information and product designation At least 2 mm

    Text content and text styles

    Homologation

    Important: Before they are used for the first time, all barcodes, data matrix codes and barcode lists you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use.This ensures that letter mailings can be processed later without problems (see “Homologation”). Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect barcodes.

    15.4 Generating shipping barcodes for international mail

    Specification

    Shipping barcodes for international mail are created in compliance with the following specification:

    Type Character set Standard
    Barcode 128 Character set B (alphanumeric) ISO/IEC 15417

    Data population

    Registered (R) international data structure

    Shipping barcodes for international mail comprise:

    • the start character (value “104”)
    • the 13 characters and digits of information content
    • the check digit/character
    • the stop character (value “106”)
    Example:
    104  Start character
    R Product Information content
    N Franking licence for international registered mail
    S
    7
    3
    8 Consignment number
    1
    7
    3
    9
    4 Check digit (Swiss Post)
    C Country of posting
    H
    + Check digit (barcode 128B)
    106 Stop character

    Positions 1 to 3: start character (3 positions)

    The value “104” signifies character set B.

    Position 4: product (1 position)

    “R” for the product “international registered mail (R)”

    Positions 5 to 8: franking licence for international registered mail (4 positions)

    The franking licences are issued by Swiss Post and identify the individual customer.

    Please send any enquiries about franking licences for international registered mail to

    Positions 9 to 13: consignment number (5 positions)

    The five-digit consignment number is assigned for each consignment in ascending order or according to a freely definable system (value range “00001” to “99999”). It is always entered starting on the far right of its barcode positions and any remaining free positions are padded with zeroes. Each consignment number must be unique within a period of 360 days, so it may be assigned only once during this period.

    Position 14: check digit (1 position)

    The check digit is calculated as the division remainder from the eight preceding digits (modulus 11).

    Calculation example:

    Positions 15 to 16: country of posting (2 positions)

    The country of posting is indicated using the ISO 3166-1 country code (“CH”).

    Position 17: check digit/character

    Positions 18 to 20: stop character (3 positions)

    Value “106”

    PRIORITY Plus / Untracked data structure

    Shipping barcodes for international mail comprise:

    • the start character (value “104”)
    • the 13 characters and digits of information content
    • the check digit/character
    • the stop character (value “106”)
    Examples:
    104 Start character
    L Product Information content
    N Franking licence for – PRIORITY Plus
    5
    7
    3
    8
    1 Consignment number
    7
    3
    9
    4 Check digit (Swiss Post)
    C Country of posting
    H
    + Check digit (barcode 128B)
    106 Stop character
    104 Start character
    U Product Information content
    N Franking licence for – Untracked
    5
    7
    3
    8
    1 Consignment number
    7
    3
    9
    4 Check digit (Swiss Post)
    C Country of posting
    H
    + Check digit (barcode 128B)
    106 Stop character

    Positions 1 to 3: start character (3 positions)

    The value “104” signifies character set B.

    Position 4: product (1 position)

    “L” for “PRIORITY Plus”

    “U” for international goods consignments without consignment tracking (Untracked)

    Positions 5 to 9: franking licence for PRIORITY Plus or Untracked consignments (5 digits)

    The franking licences are issued by Swiss Post and identify the individual customer. The same franking licence can be used for PRIORITY Plus consignments. For Untracked consignments, a separate franking licence must be opened.

    For questions concerning PRIORITY Plus or Untracked consignments:

    Positions 10 to 13: consignment number (4 positions)

    The four-digit consignment number is assigned for each consignment in ascending order or according to a freely definable system (value range “0001” to “9999”). It is always entered starting on the far right of its barcode positions and any remaining free positions are padded with zeroes. Each consignment number must be unique within a period of 360 days, so it may be assigned only once during this period.

    Position 14: check digit (1 position)

    The check digit is calculated as the division remainder from the eight preceding digits (modulus 11). See “Calculation example”.

    Positions 15 to 16: country of posting (2 positions)

    The country of posting is indicated using the ISO 3166-1 country code (“CH”).

    Position 17: check digit/character

    Positions 18 to 20: stop character (3 positions)

    Value “106”

    Barcode modules

    The start character, the digits and characters each comprise 11 modules, split into 3 bars and 3 spaces. The stop character comprises 13 modules, split into 4 bars and 3 spaces.

    Representation size

    The representation size of the barcodes is obtained by multiplying the number of modules by the module width:

    Number of characters Number of modules
    1 start character at 11 modules 11 modules
    13 digits and characters at 11 modules each 143 modules 
    1 check digit/character at 11 modules 11 modules 
    1 stop character at 13 modules 13 modules 
    Total 178 modules 

    Representation size = number of modules × module width

    178 modules × 0.335 mm = 59.6 mm

    Note: The barcode may also be shorter. Some barcode generators reduce the representation size by temporarily switching to character set C for digits then switching back again.

    15.5 Layout of shipping barcodes for international mail

    Structure of shipping barcodes for international mail

    Shipping barcodes for international registered mail (R) should be created according to the same specifications as for domestic mail. However, some elements of the data structure and layout differ. These differences are set out below.

    Consignment barcodes for international registered mail (R) comprise:

    • (A) the horizontally printed product code (capital letters)
    • (B) the horizontally printed barcode
    • (C) the horizontally printed human-readable text showing the information content of the shipping barcode. On international mail, this text is not separated by dots. However, blank spaces may be used to make it easier to read. Shipping barcodes for international mail can be readily identified by the “CH” in the human-readable information under the barcode.
    • (D) the blank quiet zones around the barcode. These areas must be left blank so that the barcode can be reliably read
    • (E) optional: handling instructions (“Please scan – Signature required, Veuillez scanner – Remise contre Signature”)
    • (F) optional: the horizontally printed full-text product designation
    • (G) the Swiss Post logo

    Important: For international registered mail (R), the PP impression is not integrated into the shipping barcode, but instead is placed in the franking zone at the top right of the mail item. Even if you use window envelopes, the impression must always be outside on the envelope.

    Note: The structure for PRIORITY Plus or Untracked barcodes can be found in the instructions for harmonized labels. To obtain these instructions, please contact your international customer advice service or international@post.ch.

    Dimensions

    The following dimensions must be observed so that the shipping barcodes for international mail can be reliably read:

    Key Description Dimension
    A Module width 0.335 mm (see “Introduction”)
    B Module ratio 4:1 (see “Introduction”)
    C Module height At least 5 mm
    D Distance between product code and barcode At least 5 mm
    E Trailing quiet zone At least 8 mm
    F Distance between barcode and human-readable information At least 1 mm
    G Distance between human-readable information and handling instructions At least 2 mm

    Note: The dimensions for PRIORITY Plus or Untracked barcodes can be found in the instructions for harmonized labels. To obtain these instructions, please contact your international customer advice service or international@post.ch.

    Text content and text styles

    The following specifications apply to the text elements:

    Note: The specifications for the text elements for PRIORITY Plus or Untracked barcodes can be found in the instructions for harmonized labels. To obtain these instructions, please contact your international customer advice service or international@post.ch.

    Homologation

    Important: Before they are used for the first time, all barcodes, data matrix codes and barcode lists you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use. This ensures that letter mailings can be processed later without problems (see “Homologation”). Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect barcodes.

    15.6 Generating value-added service barcodes for domestic mail

    Specification

    Value-added service barcodes for domestic mail are created in compliance with the following specification:

    Type Character set Standard
    Barcode 128 Character set C (numeric): Older value-added service barcodes are based on character set B (alphanumeric). This is no longer used for new implementations. However, bar-codes with character set B that have already been homologated remain valid. ISO/IEC 15417

    Data population

    Data structure

    Value-added service barcodes for domestic mail comprise:

    • the start character (value “105”; formerly “104”)
    • the 2 digit pairs for indicating the value-added service
    • the check digit pair
    • the stop character (value “106”)

    Example:

    105 Start character
    03 Code for the value-added service and delivery instructions Information content
    27
    59 Check digit pair (barcode 128C)
    106 Stop character

    Positions 1 to 3: start character (3 positions)

    The value “105” signifies character set C.

    Positions 4 to 7:

    code for value-added service (4 positions)

    Designation of value-added service Data structure (character set C) 
    Return receipt (AR) 0327
    Electronic return receipt (eAR) 0328
    Personal delivery (RMP) 0322
    Electronic cash on delivery (BLN) 0341
    A Mail Plus format surcharge (MAN) 0421
    ID check (ID+RMP) 0470
    ID check (ID+RMP) 0610
    Military consignments (MIL) 1007
    Business reply label (GAS) 0203

    Positions 8 to 9: check digit pair

    Positions 10 to 12: stop character (3 positions)

    Value “106”

    Barcode modules

    The start character and the digit pairs each comprise 11 modules, split into 3 bars and 3 spaces. The stop character comprises 13 modules, split into 4 bars and 3 spaces.

    Representation size

    The representation size of the barcodes is obtained by multiplying the number of modules required by the selected module width:

    Number of characters Number of modules
    1 start character at 11 modules 11 modules
    2 digit pairs at 11 modules each 22 modules
    1 check digit pair at 11 modules 11 modules
    1 stop character at 13 modules 13 modules
    Total 57 modules

    Representation size = number of modules × module width

    57 modules × 0.335 mm = 19.1 mm

    15.7 Layout of value-added service barcodes for domestic mail

    Simplified variant of value-added service barcodes

    If you wish to combine several value-added service barcodes or there is not enough space on the item, you can use a simplified variant of the value-added service barcodes. This does not include the full-text designation of the value-added service and consists of:

    • (A) the vertically printed abbreviation for the value-added service
    • (B) the vertically printed barcode
    • (C) the blank quiet zones around the barcode. These areas must be left blank so that the barcode can be reliably read
    • (D) The electronic cash on delivery (BLN) value-added service barcode additionally includes the horizontally printed currency code “CHF” followed by the vertically printed COD amount

    Dimensions

    The following dimensions must be observed so that the value-added service barcodes for international mail can be reliably read:

    Key Description Dimension
    A Module width
    0,335 mm (see “Introduction”)
    B Module ratio
    4:1 (see “Introduction”)
    C Module height
    At least 5 mm
    D Leading quiet zone
    At least 7 mm
    E Trailing quiet zone
    At least 7 mm
    F Quiet zone at right edge
    At least 2 mm
    G Distance between barcode and designation of value-added service
    At least 2 mm

    Text content and text styles

    Homologation

    Important: Before they are used for the first time, all barcodes, data matrix codes and barcode lists you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use. This ensures that letter mailings can be processed later without problems (see “Homologation”). Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect barcodes.

    15.8 Layout of value-added service codes for international mail

    There are no value-added service barcodes for international mail. The value-added services are indicated in plain text form. The value-added services are indicated by means of a sticker or printed code. They can be implemented as printed graphics or text in your software solution.

    For information about value-added services for international mail, see

    Return receipt

    Avis de réception

    The return receipt (AR) value-added service is indicated above the recipient address by the text “Avis de réception” (French is used as the international postal language) or a similar phrase in a language known in the destination country.

    Layout
    Font Font sizes Text colour
    Arial bold Same as recipient address Black

    Personal delivery

    A remettre en main propre

    The personal delivery (RMP) value-added service is indicated above the recipient address by the text “A remettre en main propre” (French is used as the international postal language) or a similar phrase in a language known in the destination country.

    Layout
    Font Font size Text colour
    Arial bold Same as recipient address Black

    Items for the blind

    Cécogramme

    The items for the blind (CEC) value-added service is noted above the recipient address.

    Domestic labelling: at least one of the following must be handwritten on the consignment: “Item for the blind”, “envoi pour les aveugles” or “cécogramme”.

    International labelling: the consignment must be marked with either “envoi pour les aveugles” or “Item for the blind”.

    Layout
    Font Font size Text colour
    Arial bold Same as recipient address Black

    15.9 Generating delivery instructions for domestic mail

    Specification

    Delivery instructions for domestic mail are created in compliance with the following specification:

    Type Character set Standard
    Barcode 128 Character set C (numeric) ISO/IEC 15417

    Data population

    Data structure

    Shipping barcodes for delivery instructions comprise:

    • the start character (value “105”)
    • the 2 digit pairs for indicating the delivery instruction
    • the check digit pair
    • the stop character (value “106”)
    Example:
    105 Start character
    25 Code for the delivery instructions Information content
    12
    59 Check digit pair (barcode 128C)
    106 Stop character

    Positions 1 to 3: start character (3 positions)

    The value “105” signifies character set C.

    Positions 4 to 7: code (4 positions)

    Delivery instructions description Data structure of the delivery instruction
    Second attempted delivery on the following Saturday 2512

    Positions 8 to 9: check digit pair

    Positions 10 to 12: stop character (3 positions)

    Value “106”

    Homologation

    Important: Before they are used for the first time, all barcodes, data matrix codes and barcode lists you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use. This ensures that letter mailings can be processed later without problems (see “Homologation”). Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect barcodes or data matrix codes.

    15.10 Generating barcodes for pallets

    Specification

    Shipping barcodes for pallets are created in compliance with the following specification:

    Type Character set Standard
    Barcode 128 Character set C (numeric) ISO/IEC 15417

    Data population

    Data structure

    Barcodes for pallets comprise:

    • the start character (value “105”)
    • the 9 digit pairs of information content
    • the check digit pair
    • the stop character (value “106”)
    Example:
    105 Start character
    91 Pallet identifier Nutzinhalt
    01 Product code
    31 Franking licence
    78
    00 Order number
    00
    03 Postcode area
    11 Pallet number
    01
    40 Check digit pair (barcode 128C)
    106 Stop character

    Positions 1 to 3: start character (3 positions)

    The value “105” signifies character set C.

    Positions 4 and 5: identifier (2 positions)

    Post CH Ltd has designated identifier “91” for pallets.

    Positions 6 and 7: product code (2 positions)

    The data structure varies depending on the product selected:

    Product Data structure
    A Mail “01” (product code)
    B Mail individual items “02” (product code)
    B Mail bulk mailings “03” (product code)
    OnTime Mail “04” (product code)
    DIR “11” (product code)
    B2 Mail import “20” (product code)

    Positions 8 to 11: franking licence (4 positions)

    The franking licences are issued by Swiss Post and identify the individual customer.

    Positions 12 to 15: order number (4 positions)

    The four-digit order number is assigned for each order in ascending order or according to a freely definable system (value range “0000” to “9999”). It is always entered starting on the far right of the reserved barcode positions and any remaining free positions are padded with zeroes. Each consignment number must be unique within a period of 60 days, so it may be assigned only once during this period.

    Positions 16 and 17: routing area of pallet (2 positions)

    The routing area details must be filled in. The relevant information can be found on the numbering plan at www.swisspost.ch/upstream-services.

    Positions 18 to 21: serial pallet number (4 positions)

    The more details you declare about the pallets (e.g. serial pallet number), the greater the information content for you. The pallet may not be indicated with “0000”.

    Positions 22 and 23: check digit pair

    Positions 24 to 26: stop character (3 positions)

    Value “106”

    Barcode modules

    The start character and the digit pairs each comprise 11 modules, split into 3 bars and 3 spaces. The stop character comprises 13 modules, split into 4 bars and 3 spaces.

    Representation size

    The representation size of the barcodes is obtained by multiplying the number of modules by the module width:

    Number of characters Number of modules
    1 start character at 11 modules 11 modules
    9 digit pairs at 11 modules each 99 modules
    1 check digit pair at 11 modules 11 modules
    1 stop character at 13 modules 13 modules
    Total 134 modules

    Representation size = number of modules × module width 134 modules × 0.335 mm = 44.9 mm

    Structure of barcodes for pallets

    Shipping barcodes for pallets comprise:

    • (A) the horizontally printed product code (capital letters)
    • (B) the horizontally printed barcode
    • (C) the human-readable text showing the information content of the shipping barcode
    • (D) the blank quiet zones around the barcode. These areas must be left blank so that the barcode can be reliably read.

    Dimensions

    The following dimensions must be observed so that the shipping barcodes for pallets can be reliably read:

    Key  Description Mass
    A Module width 0,335 mm (see “Introduction”,)
    B Module ratio 4:1 (see “Introduction”,)
    C Module height At least 5 mm
    D Distance between product code and barcode At least 5 mm
    E Trailing quiet zone At least 8 mm
    F Distance between barcode and human-readable information At least 1 mm

    Text content and text styles

    The following specifications apply to the text elements:

    Key A B
    Text element Product code “T & T” (Track & Trace for pallets) Human-readable information “Track & Trace pallets: XX.XX.XXXX.XX.XXXX”
    Font Arial bold Arial bold
    Recommended size 55 pt 9 pt
    Minimum size 12 pt 6 pt
    Text colour Black Black

    Homologation

    Important: Before they are used for the first time, all barcodes, data matrix codes and barcode lists you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use. This ensures that letter mailings can be processed later without problems (see “Homologation”). Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect barcodes or data matrix codes.

    16. Generating data matrix codes

    16.1 Basics

    Introduction

    Data matrix codes are two-dimensional, machine-readable graphical data carriers with a high data capacity.

    • They are composed of equal-sized square modules.
    • The arrays of modules along the perimeter are intended to assist reading. Two solid lines (A) form a corner (left and bottom edge of the DmC), which enables the location of the code to be determined (search aid lines). The module arrays along the perimeter on the opposite sides define the width of the module grid with an alternating pattern (B) (grid width lines).
    • The data area is enclosed by these aid elements (C). Its size may vary: depending on the intended data capacity, square data matrix codes from 10 × 10 to 144 × 144 modules as well as some rectangular formats can be produced.
    • With the ECC 200 data matrix type, the useful content data is stored redundantly at different locations in the data area. It is then re-assembled on reading. As a result, the contents can be reconstructed even if 28 percent of the code area has been contaminated or damaged.

    Quiet zones

    Quiet zones are the blank areas around the data matrix code that must be left free of any printing. This ensures that there is sufficient distance from other barcodes, text or design elements that could interfere with scanning.

    The data matrix code ECC 200

    For letter mail with the Letter ID light, Letter ID, Letter with ID check, Letter with ID check/contract signing, election and voting consignment, business reply label with 
    data matrix code, Global Response franking methods, Swiss Post uses data matrix code type ECC 200 to supplement the postage paid impression. This data matrix code can be used licence-free. The data matrix codes can be filled with the formats ASCII, C40, text, X12, EDIFACT, Base256 (in accordance with specification ISO/IEC 16022).

    Information on data matrix codes:

    Technical requirements for printing data matrix codes

    Your data matrix codes will be readable if you comply with the following
    specifications:

    Printer resolution

    Use a printer with a physical print resolution of at least 300 dpi (dots per inch).

    Module size

    Choose a module size of 0.5 × 0.5 mm to 0.6 × 0.6 mm.

    Colour

    Black

    Quality standard

    The print quality must satisfy at least grade B according to ANSI/AIM BC11-1997.

    Note: If you use a modern laser printer to print your data matrix codes on pure white paper, they will usually meet these requirements.

    Preconditions for using the DmC with return instructions without restrictions

    The possibilities for using return instructions (Rvv) are unrestricted and do not entail surcharges, provided that the consignment and the DmC are suitable for machine processing in the returns process.

    The return instructions service is restricted for the following consignment preparations:

    • Open consignments (catalogues, newspapers, etc.)
    • Consignments with a non-standard shape and thin cards.

    Description of the restrictions:

    • In the case of return instructions 1, 3, 5, 7 (with data), you will only receive these without consignment images.
    • Only ONE return instruction may ever be in the DmC (e.g. Rvv 1) for the entire shipment.
    • In the case of Rvv 5 or 6, only ONE AMP-ID may ever be in the DmC for the entire shipment.
    • (Only) in the case of a return instruction “with data” will a surcharge of 15 centimes per return be invoiced.
    • This also applies to consignments for which a surcharge for special items has been paid.

    Processability requirements of the DmC for machine-processable consignments:

    • The DmC must be correctly populated.
    • The DmC must be suitable for machine processing for at least 95 percent of the returns of a shipment.

    Problematic consignments:

    • Consignments in window envelopes where the DmC is sliding in and out of view in the window
    • Certain creative consignments where the DmC is impaired (coloured envelopes)
    • Poly-wrapped consignments where the DmC is directly on the poly.
    • We do not recommend putting the DmC directly on the poly. Instead, put it under transparent film on an insert sheet or on the consignment.

    More information on creating, packing and addressing letters:

    Important: Before they are used for the first time, all data matrix codes you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use. This ensures that letter mailings can be processed later without problems (see “Homologation”). Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect data matrix codes.

    Generating data matrix codes via the “Create postage paid impressions” online service

    You can use the “Create postage paid impressions” online service to quickly and easily create PP impressions on the Internet for the following franking types:

    • PP with the Letter ID and Letter ID light data matrix codes
    • Business reply labels

    Information on the “Create postage paid impressions” online service:

    Specification

    Data matrix codes are created in compliance with the following specification:

    Type Character set Standard
    Data matrix type ECC 200 with Reed-Solomon error correction Numeric: Positions that can be used freely by the customer can be filled with alphanumeric values. ISO/ IEC 16022:2006

    16.2 Layout of data matrix codes

    Module sizes

    Please use the following dimensions, so that your data matrix codes can be reliably read:

    Key Description Dimension
    A Module size 0.5 × 0.5 mm to 0.6 × 0.6 mm
    B Quiet zones 4 × the module size, but at least 2 mm on all sides (0.5 × 0.5 mm = at least 2 mm; 0.6 × 0.6 mm = at least 2.4 mm), see ISO/IEC 16022

    Representation size

    A variable number of freely usable positions are available in the data matrix code depending on the type of data to be entered. The more information that is provided, the larger the data matrix code.

    1 including search aid and screen width lines

    2 for fixed module sizes 0.5 × 0.5 mm and 0.6 × 0.6 mm

    Dimensions

    Homologation

    Important: All barcodes, data matrix codes and barcode lists you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use. This ensures that the mail can subsequently be processed without a hitch (see “Homologation”). Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect data matrix codes.

    16.3 Data structure of data matrix codes

    A data matrix code with static data content is used for the PP with Letter ID light franking method. It does not contain any customer-generated data. All consignments contain the same identification feature.

    Data matrix codes for the PP with Letter ID light

    Data matrix codes for the PP with Letter ID light franking method (static data content) have the following structure:

    Data matrix codes for the PP with Letter ID light franking method (static data content) have the following structure (continued):

    A data matrix code with dynamic data content is used for the PP with Letter ID franking method. It includes customer-generated data (order number, consignment number) and allows the use of a number of positions for the customer’s own purposes.

    Data matrix codes for the PP with Letter ID franking method

    Data matrix codes for the PP with Letter ID franking method (dynamic data content) have the following structure:

    Data matrix codes for the PP with Letter ID franking method (dynamic data content) have the following structure (continued):

    Letters with a data matrix code for the business reply label franking method use data matrix codes with static or dynamic data content.

    Static data matrix codes in contrast to the dynamic data matrix code do not contain any positions that can be used freely by the customer.

    Data matrix codes for the business reply label franking method

    Static data matrix codes for the business reply label (GAS) franking method, Global Response have the following structure:

    Dynamic data matrix codes for the business reply label (GAS) franking method, Global Response have the following structure:

    Dynamic data matrix codes for business reply labels for biological laboratory consignments (GAS LAB) have the following structure:

    The Letter with ID check and Letter with ID check/contract signing franking methods use data matrix codes with static or dynamic data content.

    The static data matrix code does not contain any customer-generated data.

    Data matrix codes for LID and LID-CS mailings

    Static data matrix codes for the “Letter with ID check” and “Letter with ID check/ contract signing” franking methods must have the following structure:

    Static data matrix codes for the “Letter with ID check” and “Letter with ID check/ contract signing” franking methods must have the following structure (continued):

    Dynamic data matrix codes for the “Letter with ID check” and “Letter with ID check/ contract signing” franking methods must have the following structure:

    Dynamic data matrix codes for the “Letter with ID check” and “Letter with ID check/ contract signing” franking methods must have the following structure:

    Election and voting consignments use data matrix codes with static or dynamic data content. The content of the data matrix code cannot be freely selected and must always be agreed with Swiss Post.

    The static data matrix code does not contain any customer-generated data.

    Data matrix codes for election and voting consignments for outbound route for political municipality (to citizen)

    Static data matrix codes for election and voting consignments (WuA) from political municipalities must have the following structure:

    Download from www.swisspost.ch/election-and-voting

    Positions Number of positions Description Content and explanation
    1 to 3 3 ISO country code Fixed value “756” = Post CH Ltd
    4 to 5 2 Group unit Fixed value “80” = Domestic letter
    6 to 7 2 Type of data matrix code Fixed value “21” = Data matrix code type 21
    8 to 15 8 Sender invoice reference number Fixed value “90909090” = Fictitious WuA invoice reference number
    16 to 21 6 Order number Fixed value “123456”
    22 to 30 9 Consignment number Fixed value “123456789”
    31 to 33 3 Address block function, processing product Fixed value “129” = Outbound route for political municipalities static code (address block function active)
    34 to 36 3 Instructions for returns, consignment purpose/type and value-added service Fixed value “000” = Physical return, without address ID, without data
    37 to 44 8 Address ID return address Fixed value “00000000”

    Data matrix codes for election and voting consignments for outbound route for parishes (to citizen)

    Static data matrix codes for election and voting consignments voting consignments (WuA) from parishes must have the following structure:

    Dynamic data matrix codes for election and voting consignments for outbound route for political municipality (to citizen)

    Dynamic data matrix codes for election and voting consignments from political municipalities must have the following structure:

    Dynamic data matrix codes for election and voting consignments from political municipalities must have the following structure (continued):

    Data matrix codes for election and voting consignents for return route (citizens of political municipalities) without business reply label (GAS)

    Download from www.swisspost.ch/election-and-voting

    Static data matrix codes for sending election and voting consignments from political municipalities without a business reply label must have the following structure:

    Positions Number of Positions Description Content and explanation
    1 to 3 3 ISO country code Fixed value “756” = Post CH Ltd
    4 to 5 2 Group unit Fixed value “80” = Domestic letter
    6 to 7 2 Type of data matrix code Fixed value “21” = Data matrix code type 21
    8 to 15 8 Invoice reference number of the sender Fixed value “90909090” = Fictitious WuA invoice reference number
    16 to 21 6 Order number Fixed value “123456”
    22 to 30 9 Consignment number Fixed value “123456789”
    31 to 33 3 Address block function, processing product Fixed value “130” = Return route, static, without GAS (address block function active)
    34 to 36 3 Instructions for returns, consignment purpose/type and value-added service Fixed value “000” = Physical return, without address ID, without data
    37 to 44 8 Address ID return address Fixed value “00000000”
    45 to 60 16 Positions that can be used freely by the customer Fixed value “0000000000000000”

    Data matrix codes for return route (citizens of political municipalities) with business reply label (GAS)

    Static data matrix codes for returning election and voting consignments to political municipalities with a business reply label must have the following structure:

    Data matrix codes for return route (citizens of political municipalities) without business reply label (GAS)

    Dynamic data matrix codes for returning election and voting consignments to political municipalities without a business reply label must have the following structure:

    Dynamic data matrix codes for returning election and voting consignments to political municipalities without a business reply label must have the following structure (continued):

    Dynamic data matrix codes for returning election and voting consignments from political municipalities with a business reply label must have the following structure (continued):

    Dynamic data matrix codes for returning election and voting consignments from political municipalities with a business reply label must have the following structure (continued):

    17. Generating barcode lists

    17.1 Generating barcode list forms and duplicates

    Generating barcode list forms

    If you generate barcodes with a software solution, there are a number of ways of generating corresponding barcode lists “21” or “23” for mailing.

    • You can use the prepared, writeable PDF forms from Post CH Ltd and complete them under script control.
    • You can use the PDF forms as a graphical background and position the entries over it.
    • You can program the complete barcode lists – analogously to the forms from Post CH Ltd – in your software solution.

    To download barcode lists, visit

    Important

    • You must observe the dimensions and positions of design elements and entries exactly in order to process your barcode lists automatically.
    • Observe the specifications when populating the barcode lists.

    Generating duplicates for shipping barcodes

    Simplified variants of the shipping barcodes, referred to as duplicate barcodes, are required for the barcode list. For these duplicates, the printing, design and population specifications of the respective shipping barcodes apply. Only the following elements are displayed:

    • (A) branch at domicile 
    • (B) the product abbreviation 
    • (C) the barcode 
    • (D) the human-readable information 
    • (E) for Letter mail easy: PP impression

    Abbreviations of product designations on duplicates

    Domestic mail
    Product designation Abbreviation on duplicate
    Registered (R) R-Inl
    A Mail Plus (A+) A Mail
    Dispomail (A) A Mail
    Debt collection documents (BU) BU
    Court documents and court documents online (GU) General contractor
    Electronic cash on delivery (BLN) BLN
    Letter with ID check/contract signing (LID-CS) CT
    Letter with ID check (LID) ID
    International mail
    Product designation Abbreviation on duplicate
    International registered mail (R) R-Etr
    PRIORITY Plus PRIO+
    Untracked U

    Homologation

    Important: Before they are used for the first time, all barcodes, data matrix codes and barcode lists you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use. This ensures that letter mailings can be processed later without problems (see “Homologation”). Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect barcodes.

    18. Homologation

    18.1 Homologation of barcodes, data matrix codes and barcode lists

    Important: Before they are used for the first time, all barcodes, data matrix codes and barcode lists you create must be homologated by Post CH Ltd. For this they are selected using special test systems and checked for readability and data integrity. If they meet all the criteria, they are then approved for operational use. This ensures that the mail can subsequently be processed without a hitch. Homologation is free of charge. Swiss Post accepts no liability for mail items that cannot be processed correctly due to non-homologated, incorrect barcodes or data matrix codes.

    Homologation of barcodes and barcode lists

    Send five examples each of the following mail samples (in the case of envelopes, complete filled mail items) for homologation:

    • All combinations of barcodes, data matrix codes, modes of application (printed on contents, label, printed on mail item), placements, paper material, envelopes and printers that you use operationally.
    • If you subsequently change these combinations, you should have mail samples homologated again.

    If you have any questions, please contact your customer advisor.

    Send your samples to:

    Post CH Ltd
    Logistics Services, Operations
    Final Proof Center
    Lischmatt 40
    4621 Härkingen
    Switzerland
    Tel. +41 58 667 71 20

    Homologation of data matrix codes

    Details on the process can be found in the “Final proof” specification sheet at:

    19. More information

    19.1 Contacts

    For barcodes, barcode lists and delivery instructions

    If you have any queries about the use of barcodes, barcode lists and delivery instructions, please contact your customer advisor.

    If you have any queries about homologation of barcodes and delivery instructions, please contact the following address:

    Post CH Ltd
    Logistics Services, Operations
    Final Proof Center
    Lischmatt 40
    4621 Härkingen
    Switzerland
    Tel. +41 58 667 71 20

    For barcodes for pallets

    If you have any queries about the use of barcodes for pallets, please contact your customer advisor.

    For data matrix codes

    If you have any queries about the use of data matrix codes, please contact your customer advisor.

    If you have any queries about homologation of data matrix codes, please contact the specialists in your region for consultation on a final proof.

    Further information, address details and online contact form:

    For parcel post

    You can find detailed information on how to create barcodes for parcels at www.swisspost.ch/barcode-business-customers. Information may be obtained from the following address:

    Post CH Ltd
    Logistics Services, Operations
    Center of Excellence – Packaging and Address Quality
    Altgraben 5
    4620 Härkingen
    Switzerland
    Tel. 0848 888 888 (CHF 0.08/min. from landline phones within Switzerland)
    qualitaet-verpackung-adresse@swisspost.ch

    20. Release notes

    20.1 Changes in 2024

    • Implementation on microsite
    • Introduction of the “MAN” value-added service for the “A Mail Plus” product
    • Renaming “KLP” to “My Post customer portal”