This is the persistent repository for documents that have been written by GS1's Subject Matter Experts. They are distinct from GS1's standards and guidelines that are created under GSMP but offer practical advice that can help to create implementations that conform to one or more GS1 standards to meet business needs.
As with all documents on ref.gs1.org, URIs are persistent and content may be referred to with confidence.
It is not the purpose of ref.gs1.org to provide an easy navigation route to all content. That is provided by GS1's primary website.
Recent SME Guidance
- Solution provider 2D readiness (April 2025) [archive]