VercatusMerchant center feeds power AI shopping
Google's Shopping Graph is built from product information that brands and retailers send through Merchant Center and Manufacturer Center (names, descriptions, prices, images, reviews) and is used in Search, ads, YouTube and generative AI features; in November 2025 Google said AI Mode is powered by the Shopping Graph (more than 50 billion listings, 2 billion updated every hour). Product data reaches Google Search through Product structured data, a Merchant Center feed opted into free listings, or both; Google says providing both maximises eligibility and helps it verify the data. Merchant listing markup requires name, image and an Offer with price and priceCurrency, and return and shipping policies can be declared once at Organization level.
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AGrade A: official documentation or a standard. A grade describes the provenance of the sources above; it is not a probability that a change will work. The effect basis says how the size of the effect is known: measured by a study, taken from an industry report, only documented without a size, or not quantified.
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