Some early-stage sellers use a self-generated or "local" barcode to get listed quickly. It's worth knowing exactly what that shortcut risks before relying on it.
What a "local" barcode usually means
Typically a number generated by a listing tool or self-assigned rather than issued through GS1 — it may look identical to a real barcode on the page, but it isn't globally registered or guaranteed unique.
The risk: collisions and delisting
Because the number isn't reserved through GS1's global registry, there's a real chance another seller — anywhere in the world — is using the exact same number for a completely different product. Marketplaces that later audit listings for standards compliance can flag or delist products using non-GS1 barcodes.
When this catches up with sellers
Usually at the point of scale — a marketplace tightening compliance requirements, a retail chain requesting GS1 verification before a large order, or an export shipment needing an internationally recognized identifier. Switching a live product's barcode after launch also means updating packaging, which costs more than registering correctly the first time.
Register a real GS1 barcode before you scale
The registration guide covers the full process — cheaper to do once than to redo after a delisting.
Read the registration guide →