ΤεχνολογίαGTIN

GTIN (Global Trade Item Number)

Σύντομη απάντηση

Global product identification code - base for EAN-13, UPC, marketplaces.

Βασικά συμπεράσματα

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.

Ενημέρωση: 2026-07-17

Συχνές ερωτήσεις

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.

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