GTIN (Global Trade Item Number)
The universal product identifier — UPC, EAN, or ISBN — Walmart requires on every catalog listing.
GTINs are 8-14 digit barcodes used across the retail supply chain. Walmart cross-references the GTIN against the brand's GS1 license to validate that you're authorized to sell the product.
Counterfeit GTINs are a Walmart suspension risk. Buy GTINs only from GS1 directly (https://www.gs1.org/) or as an authorized brand reseller.
Private-label sellers issuing their own GTINs need a GS1 Company Prefix; resellers piggybacking on another brand's GTIN need invoices proving authentic sourcing.
Last reviewed May 13, 2026.
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