Google's Content API for Shopping retirement: what custom Merchant Center integrations must change

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Google retired version 2.1 of the Content API for Shopping on August 18, 2026, and requests from projects without an active extension now intermittently fail with HTTP 410 and a content_api_sunset error. All requests are expected to stop working in early 2027. The article notes that managed ecommerce platforms usually handle the migration, so the guidance targets teams maintaining custom scripts or feed services. Developers are advised not to retry failed calls and to log the sunset reason explicitly, since silent failures can leave product data stale in Merchant Center. The migration requires enabling the Merchant API, registering the Google Cloud project with the Merchant Center account, creating an API-input data source, and updating method names, product ID formats, and price structures. The author also promotes a free static scanner and a paid diagnostic service offered by their company.

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