GTIN (Global Trade Item Number)
Quick answer
Global product identification code - base for EAN-13, UPC, marketplaces.
Key takeaways
- On product packaging - barcode
- In the retailer catalogue - as unique key
- In EDI messages (ORDERS line item, DESADV line, INVOIC line)
- In marketplaces (eMAG, Amazon) - mandatory for listing
- In GDSN - shared source of truth with the retailer
Definition
GTIN (Global Trade Item Number) is the GS1 code family uniquely identifying a trade item anywhere worldwide. Variants: GTIN-8 (small, space-constrained products), GTIN-12 (UPC) - US/Canada, GTIN-13 (EAN-13) - European standard, GTIN-14 (DUN-14) - logistics grouping (case, pallet).
Where GTIN appears
- On product packaging - barcode
- In the retailer catalogue - as unique key
- In EDI messages (ORDERS line item, DESADV line, INVOIC line)
- In marketplaces (eMAG, Amazon) - mandatory for listing
- In GDSN - shared source of truth with the retailer
Critical rules
- One distinct trade item = one distinct GTIN. A change in weight, packaging or formula requires a new GTIN.
- Never reused. A deactivated GTIN must remain inactive at least 48 months (food) or 30 months (non-food).
- Color / size variants in fashion require a different GTIN per SKU.
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Frequently asked
Are GTIN and SKU the same?+
No. SKU is your company's internal code (any format). GTIN is the global standard code, emitted from your GS1 prefix.
Can a product have two GTINs?+
No - one trade unit has exactly one GTIN. It can also have a separate GTIN-14 for grouping (case), but the unit GTIN-13 stays unique.
Where CRMconnect fits
Related terms
GS1
The global organization managing trade identification standards: GTIN (EAN), GLN, SSCC, EANCOM.
TechnologyGLN (Global Location Number)
13-digit GS1 code uniquely identifying a location (HQ, warehouse, store, delivery dock).
LogisticsSSCC (Serial Shipping Container Code)
Unique 18-digit code identifying an individual transport unit - pallet, case, container.