A plain-language explanation
Google Merchant Center is a platform for sending and managing product information that may appear in organic product results and Google Ads campaigns.
Where it helps in practice
Merchant Center supplies product, price, stock and shipping data to Google; mismatch with the store causes disapprovals and lost visibility.
The decision before implementation
Choose the feed source of truth, update cadence and ownership of attribute and policy errors.
How to verify the result
Monitor disapprovals, price and stock mismatch, GTIN quality, sync delay and clicks landing on unavailable variants.