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Content API for Shopping was sunset on August 18, 2026, and requests began experiencing progressive errors on September 1. Merchant API takes over product uploads, inventory, account management, and the Google Ads inventory link. Here is how to confirm in half an hour which API your stack calls, what goes dark when the feed stops, and how the extension request form works as an emergency lever.
A July 2026 Productrise study tracked 21 days of US and UK search results across 100,000 SERPs and 2 million listings. Product visibility rate dropped from 88% to 23%, listings per page fell from 22.5 to 4.3, and overlap between the two interfaces was 0.8%. Here is what actually moves the needle on those remaining four slots.
Google I/O 2026 launched Universal Cart and UCP, letting shoppers add products across Search, Gemini, YouTube, and Gmail without leaving the page. Only products with native_commerce attributes get the Buy button. Setup requires Google Pay Console and 3 REST endpoints.
Google launched Conversational Attributes in Merchant Center at Google Marketing Live on May 21, 2026 — new product data fields designed specifically for AI Mode and the Gemini App. Standard feed optimization no longer covers AI search visibility. These fields describe use cases and context the way shoppers actually ask questions.
Google AI Overviews now appear on 14% of shopping queries — up from 2% just months ago. Here's what changed, what it means for your product visibility, and how to adapt your SEO strategy.