GDSN (Global Data Synchronization Network) is the world’s largest standardized product‑data network, created and governed by GS1, that enables trading partners (brands, retailers, distributors, manufacturers, healthcare providers, etc.) to share accurate, up‑to‑date product information in real time through a system of certified, interoperable data pools.

The network ensures that all parties—across any market—have access to consistent, validated master data, such as product attributes, logistics data, regulatory information, packaging details, and GTIN‑level specifications.

DSN solves the costly problem of inconsistent product data by enabling “one source of truth” that automatically synchronizes product content across all subscribed trading partners.