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REPAIR GUIDE · STEP BY STEP

Check Brand, GTIN and MPN Coverage Safely

Review identifier coverage without inventing values.

How to diagnose and repair the issue

  1. Measure products with brand GTIN or MPN supplied
  2. Check digits of numeric GTINs
  3. Check product type rules for identifier applicability
  4. Get authoritative codes from packaging or manufacturer
  5. Validate final data against merchant policy
⚠ Before exporting

Missing GTIN can be legitimate for some items; a coverage percentage is not a rejection rate.

Check the fix

Keep an untouched copy of your source feed. Run the relevant check again, inspect flagged rows and compare a small sample with your store catalog. Merchant Center may apply additional requirements by country, product category and destination.

For the definitive requirements, review Google's current product data specification and your own Merchant Center diagnostics.