Read the exact rejection
Record the affected channel, item and attribute named in the diagnostic. A missing brand, missing GTIN and invalid manufacturer part number are different issues. Check the actual product and supplier information rather than copying one generic value across the catalogue.
- Keep a redacted rejection message and the named affected product.
- Compare product facts with the submitted feed value.
- Do not invent a GTIN, manufacturer or brand to silence the warning.
Apply the relevant product rule
Google's brand guidance requires an accurate brand or maker where identifiable. Custom and private-label goods have specific rules, including shop-name branding in certain cases; custom goods are not automatically exempt. Goods with no identifiable brand can have different treatment. Follow the current attribute guidance for the actual item rather than marking every product identifier_exists false.
- Use the recognised maker for a third-party compatible product.
- Review other required identifiers separately.
- Do not alter product images to fabricate branding evidence.
Check the mapping before resubmission
Identify where the channel gets its brand and identifier values: the source product fields, a feed mapping or an app transformation. Correct the authoritative source or agreed mapping and inspect the submitted result. A correct Shopify display field does not guarantee the feed sent the same value.
- Limit changes to the agreed product set.
- Preserve a before/after field record with public or synthetic facts.
- Account-holder authority is required for channel changes and submission.
Acceptance boundary
The bounded outcome should name which products and rejection reasons were corrected and the channel result used to verify them. It does not promise rankings, advertising approval for unrelated policy issues or increased sales. Send the redacted diagnostic and product facts initially, not merchant credentials.
Sources and limits
- Google Merchant Center: brand attribute Checked 2026-10-10.
- Use an accurate identifiable brand or manufacturer.
- Do not guess a brand when it is unknown.
- Custom or private-label goods have specific guidance; custom goods are not automatically exempt from identifiers.