Verified by GS1 FAQs


Verified by GS1 is a global registry of Global Trade Item Numbers (GTINs), used to verify whether a set of basic attributes are present for a product. Making it possible for the brand owner / GTIN Allocator to share core data about their products and for retailers and marketplaces to verify the identity of the products they sell.


Verified by GS1 is used by retailers, marketplaces and brand owners / GTIN Allocators. Basically any organisation involved in selling or buying products (including importers, wholesalers, distributors, solution providers and government agencies) and has a need to either register a product’s GTIN, or to verify the brand owner or identity of a GTIN. Verified by GS1 is available to all members of GS1 Australia.


By sharing GTINs and product attribute information through Verified by GS1, brand owners / GTIN Allocators have a single place for retailers and marketplaces to verify the presence of attributes for product listings. Here are some of the common challenges around unique product identity that Verified by GS1 addresses:

  • Different product versions share GTINs: Some brand owners / GTIN Allocators use the same GTIN for several variations of a product, making product tracking almost impossible. For example, a product may come in multiple colours, but all of them would share the same GTIN, causing unnecessary and confusing overlap.

  • Recycled GTINs: Some brand owners / GTIN Allocators reuse the same GTIN for every iteration of a product. For example, both new and old product models could share the same GTIN—even if the features and functions have changed entirely.

  • GTIN use without ownership: Some brand owners / GTIN Allocators accidentally use GTINs licensed to another company.

  • Same product with multiple GTINs: This is caused both by brand owners / GTIN Allocators who do not know their product does not need a new GTIN and/or who identify the same item multiple times to improve visibility and search placement.


National Product Catalogue (NPC) includes item and price data between suppliers and data recipients, for example nutrients allergens, images for print and websites etc. Verified by GS1 does not provide any price information and only very basic product information such as brand name, target market, net content and functional name.


Access to NPC data is limited to NPC subscribers. Retailers only have access to data if there is an agreement between suppliers and retailers. Verified by GS1 data is available to all GS1 Australia members.


Barcode Check is the name of the service provided by GS1. Barcode verification is one of the processes performed as part of Barcode Check.


Companies need to be a member of GS1 Australia to access Verified by GS1. If you are not a member, please join here.


To assist members, the following Quick Start Guides are available: