Google has released several updates to the Merchant API for October 2026. These updates include enhancements in YouTube Shopping and AI-commerce reporting, new product attributes for videos and warranties, and improved disapproval diagnostics.

Among the key changes are YouTube Shopping affiliate reporting, the addition of product certification links, expanded warranty attribute support, and offer-level video links. The update also includes new Java code samples for managing region batching and API integration enhancements.
Additionally, certain reporting elements such as YoutubeProductPerformanceView (v1alpha) have been deprecated. More details can be found in the October 2026 release notes.
This update was spotted by Barry Schwartz.