REPAIR GUIDE · STEP BY STEP
How to Fix Missing GTIN, Brand or MPN Data
Identify known product identifiers without inventing manufacturer information.
How to diagnose and repair the issue
- Review product brand, gtin and mpn fields
- Find authentic GTINs from manufacturer or packaging
- Validate numeric lengths and check digits
- Use accurate brand or MPN values when available
- Review category exceptions and merchant requirements
⚠ Before exporting
Some products legitimately lack GTINs; never generate fake codes.
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.