Google Merchant API With New October 2026 Updates

Google released its October 2026 Merchant API update, adding YouTube Shopping affiliate reporting and developer policies (v1alpha), UCP agentic performance reporting (v1alpha), offer-level video links, expanded warranty attribute support, and a store homepage URI field in the Accounts sub-API. The release also adds product certification links, United Kingdom energy efficiency enums, mileage allowance for vehicle installments, new Java code samples for region batching, and third-party service provider documentation, while deprecating YoutubeProductPerformanceView (v1alpha) and changing Notifications sub-API pagination defaults.

Google has released several updates to the Merchant API for October 26. The update expands YouTube Shopping and AI-commerce reporting, adds product attributes for videos and warranties, improves disapproval diagnostics, and introduces API integration enhancements and reporting deprecations. The October 2026 release notes https://developers.google.com/merchant/api/latest-updates october 2026 list the following chages: - YouTube Shopping affiliate reporting and developer policies v1alpha - Store homepage URI in the Accounts sub-API - Product certification links and United Kingdom energy efficiency enums - Mileage allowance for vehicle installments - Offer-level video links - New third-party 3P service provider documentation - New Java code samples for managing region batching - UCP agentic performance reporting v1alpha - Expanded warranty attribute support - Offer-level account issue denormalization - Deprecation of YoutubeProductPerformanceView v1alpha - Notifications sub-API pagination defaults and new guides - Reference documentation and quotas and limits guide reorganization You can see the more details list of changes in the October 2026 release notes https://developers.google.com/merchant/api/latest-updates october 2026 . Forum discussion at X https://x.com/rustybrick/status/2115765914566054277 .