INVALID_GTIN
How to fix an invalid GTIN in a product feed
A GTIN is not an internal SKU. It is a globally assigned barcode number, and its length and final check digit must be valid.
Rule source reviewed September 3, 2026
Why it happens
- An internal SKU, MPN, or store barcode was entered in the GTIN field.
- A digit was dropped or mistyped while copying the barcode.
- The value uses a restricted or coupon-only prefix.
How to fix it
- 1Find the barcode assigned by the manufacturer on the product or packaging.
- 2Confirm the value contains 8, 12, 13, or 14 digits and passes its checksum.
- 3Do not invent a GTIN. If the product truly has no assigned identifiers, review identifier_exists and the brand/MPN rules.
Example
Before
gtin: 1234567890123After
gtin: 4006381333931