--- title: "GS1, GTINs and GDSN Explained by a Former Registry Operator" url: https://apiworx.com/videos/gs1-gtins-and-gdsn-explained-by-a-former-registry-operator description: "GS1 GDSN connects suppliers and retailers through certified data pools and the Global Registry. Learn how GTINs, GLNs and SSCCs support product data, EDI…" lang: en --- Commerce operations automation · Connect · Automate · Orchestrate · Flat-fee pricing # GS1, GTINs and GDSN Explained by a Former Registry Operator GS1 GDSN connects suppliers and retailers through certified data pools and the Global Registry. Learn how GTINs, GLNs and SSCCs support product data, EDI orders, carton labels, ship notices and invoices. 1:59 · 2026-11-14 ## Transcript GS1 GDSN, explained. Plus the GTINs and GLNs that make it work. Our founder, Charlie Alsmiller, helped run the GS1 Global Registry, part of the Global Data Synchronisation Network. That experience informs how we connect product data and trading-partner workflows at APIWORX. Start with the GTIN, the common language trading partners use to recognise products. We map GTINs to your SKUs, validate check digits, and manage each, inner pack, case and pallet. GLNs handle the where. Ship-to, bill-to and store-level location codes, so shipments land at the right distribution centre or store, and invoices route correctly. Then there's GDSN. Suppliers publish product data once, through a certified data pool, and share it with every subscribing retailer. The Global Registry is its central directory. We connect your ERP or PIM to your data pool, keep item data consistent across GDSN, EDI and ecommerce, and resolve validation errors before they hold up item launches. From PO to payment, it's the same identifiers. The 850 references GTINs and GLNs. GS1-128 labels carry an SSCC per carton. The 856 lists every SSCC. And the 810 reconciles, so it clears. Most chargebacks come from a late or inaccurate ASN, a carton label that doesn't match it, or an invoice that doesn't reconcile. We validate all three before they leave your system. GS1, GTIN, GLN and EANCOM are trademarks of GS1 AISBL. APIWORX is not affiliated with GS1. Start with a free integration plan. apiworx.com. 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