How to Fix Google Merchant Center Error: Missing GTIN or MPN

Google Merchant Center requires unique product identifiers (UPIs) such as Global Trade Item Numbers (GTINs) or Manufacturer Part Numbers (MPNs) for most brand-name items. UPIs allow Google to group similar products and compare prices across merchants.

If your XML feed does not define a valid GTIN, MPN, or brand tag, Google Shopping will limit your visibility or disapprove your listings. FeedScrub detects missing identifiers, filters them, and suggests optimal resolution paths.