Feeds & Shopping
Google Merchant Center
Google Merchant Center is the platform where retailers upload and manage product data that powers Shopping ads, Performance Max retail campaigns, and free product listings across Google.
In practice
Merchant Center holds your catalog: titles, descriptions, prices, availability, images, identifiers, shipping, and tax. Google Ads reads that data to build Shopping ads, so the quality of what sits in Merchant Center determines which searches your products can enter and how they look when they do.
The account also enforces policy. Products get disapproved for missing identifiers, price mismatches between feed and site, image problems, and prohibited content; whole accounts get suspended for misrepresentation, which is a site-level trust judgment rather than a feed error. Disapprovals are usually a same-day fix; suspensions require changes to the site and a formal review.
Merchant Center also carries website verification, shipping and tax settings, and the link to Google Ads. Every e-commerce onboarding starts here, before any campaign is touched, because a clean feed is worth more than any bidding change.
Why it matters
Shopping and retail PMax cannot serve a product Merchant Center has not approved.
RELATED TERMS
Product Feed
A product feed is the structured file or API connection that sends your catalog attributes (id, title, description, price, availability, image, GTIN, category) to Merchant Center.
Supplemental Feed
A supplemental feed is a secondary data source in Merchant Center that adds or overrides attributes on products already in your primary feed, matched by product id.
Shopping Campaign (Standard Shopping)
A standard Shopping campaign serves product ads built from your Merchant Center feed on Google Search and the Shopping tab, with bidding and targeting controlled at the product group level rather than by keywords.
Written by Ilya Bulychev, Founder, Live PPC Ads. Part of the PPC Glossary.
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