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GS1 Encoding · Logistics Unit Serial Number

SSCC Barcode · 18-digit Logistics Unit Serial Number

Every carton has its own serial number. SSCC enables logistics units to be uniquely identified at every stage of transport, transfer, and receipt, and is a foundational identifier for supply chain visibility.

SSCC Carrier · GS1-128 AI(00)18-digit serial number
00369012345000000128

The image above shows the SSCC'scarrier symbol (GS1-128, containing AI 00)generated in real time according to the standard. The SSCC itself is not printed as a standalone symbol.

Management Organization and System Background

Who manages this coding system

SSCC (Serial Shipping Container Code) is part of the GS1 system,identifying each logistics unit (box, pallet, container)as an 18-digit serial number. Its purpose is to give each logistics unit a unique identity throughout transportation, and it can be used together with GLN (party) and GTIN (product) for positioning.

Our role:Bangma International is the "most trustworthy member unit" of the Hong Kong, International, and China product coding associations, and asan association member organizationprovides agency application services for enterprises.We do not represent any official institution, and enterprises may also apply directly to member organizations.

Where it is read

Transport handover

Carriage and transshipment

Waybills, handovers and receipts are recorded by logistics unit serial number

Warehouse management

Inbound and inventory counting

Inbound, putaway and inventory counting by logistics unit

Supply chain visibility

Full traceability

Together with GLN and GTIN, it enables three-level positioning of party-product-unit

Code structure and parameters

The 18 digits of the SSCC give each logistics unit a unique identity; its form is not a standalone barcode, but AI(00) data carried in GS1-128.

CompositionNumber of digitsMeaning
Extension digit1 digitAssigned by the company itself to distinguish packaging type or business purpose
Company prefix + serial reference16 digitsThe company code segment assigned by the member organization + the serial number compiled by the company itself
Check digit1 digitCalculated using the GS1 mod10 algorithm (odd-numbered positions from the right ×3)
CarrierGS1-128 · AI 00SSCC is not printed as an independent symbol form, but is carried as AI(00) data in the GS1-128 symbol
Object

Logistics unit rather than commodity

SSCC identifies "this box/this pallet"; the same commodity can have many different SSCCs.

Structure

18 digits = extension digit + company code + serial reference + check digit

The extension digit is used to identify the packaging type, and the serial reference is compiled by the company itself.

Carrier

Printed with GS1-128

SSCC itself is not printed as an independent symbol form, but is carried as AI(00) data in the GS1-128 symbol.

Four types of application matters

A barcode is not something that is done once and then finished — when company information changes, when the right to use the codes needs to be maintained, or when the business is transferred, the corresponding procedures must be handled.

New application: obtain codes from scratch

STEP 01

Confirm requirements

Logistics unit scale (estimated annual number of boxes shipped / number of pallets) and existing serial number compilation rules

STEP 02

Prepare documents

Prepare according to the registration documents of the location of the applying entity; see the checklist on the right

STEP 03

Submission and review

Submit the application to the GS1 member organization and wait for the company prefix to be assigned

STEP 04

Assignment and use

After obtaining the company identification code segment, compile a unique SSCC for each logistics unit and print it with GS1-128

Commonly used document checklist

  • Full set of company registration documents (certificate of incorporation / business registration certificate, etc., depending on the local entity type)
  • Director's phone number and email
  • ID documents of directors and shareholders
  • Registration form (provided by our company; in some countries/regions it is actually not required)
The document checklist is subject to the current requirements of the member organization; during business coordination, each item will be checked one by one to avoid repeated supplementary submissions.

Change: when company information changes, it must be updated accordingly

The following situations require a change:

  • Change of enterprise name
  • Change of registered address
  • Change of legal representative / director
  • Change of contact information
Risks of not changing in time: the coding information is inconsistent with the registered information, which may be questioned during channel review or filing, affecting listing.

Key points for handling

Point 01

Handle with change certificate

A change certificate issued by the local registration authority must be provided

Point 02

The code itself remains unchanged

The company prefix remains unchanged; only the enterprise information in the system is updated

Point 03

Handling of packaging inventory

Already printed packaging can usually continue to be used, with no need to reprint the barcode graphic

Renewal: usage rights need to be maintained

Member organizations differ in how they maintain code usage rights (annual membership fee system or validity period renewal system), subject to the current policy of that member organization. If not maintained on time, the code may be suspended or reclaimed, and the normal circulation of goods in channels will be affected.

It is recommended to 3 monthsbefore expiration, initiate renewal to avoid interruption caused by material preparation or system processing time.

Reminder services we provide

  • Registration and reminders for barcode expiry dates
  • Renewal document verification and submission on your behalf
  • Confirmation of barcode status after renewal
  • Unified ledger management for barcodes across multiple markets

Customers who have already processed through Bangma International can register for expiry reminders free of charge.

Transfer: barcodes transfer together with the business

During mergers and acquisitions, brand transfers, or business restructuring, the company prefix can be transferred as an asset together with the business. The transfer requires a joint application by both parties and completion of changes to entity information and ownership.

After the transfer is completed, the original company may no longer continue to use that barcode segment; packaging already printed with that barcode requires a corresponding handling plan.

Applicable scenarios

  • Integration of brands and product lines after mergers and acquisitions
  • The brand owner transfers barcode assets to a contract manufacturer or licensee
  • Disposal of barcode assets before company deregistration
  • Change of entity for cross-border e-commerce

Fees and turnaround time

Fee composition

The total fee usually includes: the barcode service fee charged by the member organization (based on tier and number of years) + agency service fee. Factors affecting the fee:

  • The company identification code segment of the corresponding encoding and the processing tier
  • Whether the serial number compilation scheme needs assistance in design
  • Whether it is planned in combination with GLN / GTIN
  • Requirements for implementation support of GS1-128 printing and label specifications
Fees to be confirmed by our business teamWe do not provide general quotations. After you submit your requirements, a coding consultant will give you a clear plan and a detailed fee breakdown based on your actual situation.

Timeline reference

New application

Subject to the member organization's processing progress

Once all documents are complete, the review and allocation process begins; timelines vary by country

Change / renewal

Usually faster than a new application

No new code allocation is involved, so the process is relatively simple

Transfer

Requires cooperation from both parties

Involves ownership confirmation; the timeline depends on how prepared both parties' materials are

The above is a description of the process sequence and does not fabricate specific numbers of days. The actual timeline is subject to the accepting organization's current announcements and processing progress, and we will keep you updated at every stage during the process.

Common questions about SSCC logistics unit serial numbers

Does the SSCC need to be different for every box?+
Yes. The meaning of SSCC is to makeeach logistics unit unique, so every box in the same shipment should be assigned a different serial number. Companies need a set of serial number compilation rules (including the use of the extension digit) to avoid traceability breakpoints caused by duplication and skipped numbers.
Does SSCC have a validity period? Can it be reused?+
The assignment and use of SSCC follow the rules and constraints of GS1, and the serial number should be guaranteed not to repeatwithin the period required for supply chain traceability. The specific assignment and reuse criteria are subject to GS1 rules and the current statements of the member organization.
What is the difference between SSCC and ITF-14?+
ITF-14 carries GTIN-14and indicates "which category of packaging this product belongs to"; SSCC is 18-digit serial numberand indicates "which specific box this is". The former is shared by product category, while the latter differs for each logistics unit. When individual items need to be distinguished, use SSCC; when only category identification is needed, GTIN-14 is sufficient.
Why does SSCC need to be printed with GS1-128, and cannot be printed like EAN-13?+
Because SSCC needs to use theApplication Identifier AI(00) to indicate "the following 18 digits are the logistics unit serial number". Retail product codes only carry a number with a fixed meaning and cannot express the structure of "AI + data", so SSCC uses GS1-128, which supports AI, as its carrier.

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