Google Expands UCP With Cart, Catalog, Onboarding

March 19, 2026

Google Expands UCP With Cart, Catalog, Onboarding

Google updated the Universal Commerce Protocol with new Cart and Catalog capabilities, highlighted Identity Linking as an available option, and announced a simpler onboarding process through Merchant Center. The update is UCP’s first since Google launched the protocol at NRF in January. Cart and Catalog are published as draft specifications. Identity Linking is in the

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Published by searchenginejournal.com