Fix missing GTIN/MPN identifier errors for brand-name products in Google Shopping feeds.
Brand-name products usually require a GTIN (UPC/EAN) or MPN. Missing identifiers can limit visibility or cause disapprovals.
FeedScrub flags items that have a brand but neither GTIN nor MPN (unless identifier_exists is FALSE). Add valid codes in your catalog, regenerate the feed, and re-scan.
For private-label products without GTINs, set identifier_exists to FALSE according to Google’s guidelines — then confirm with a fresh audit.