In this article
Reasons why the issue is happening
One or more Global Trade Item Numbers (GTINs) that you submitted for your products aren't formatted correctly. This error usually occurs because:
- The GTIN contains characters that aren't numerals.
- The GTIN uses formatting that doesn't match one of the standard GTIN types . You must only use GTINs as they have been assigned by the manufacturer.
- Too many or too few digits. GTINs are 8, 12, 13, or 14 digits.
- Failed check digit validation (a technical method used to verify if your data is correct). If you mistyped a digit, the check digit can help to catch that. Use the GS1 check digit calculator
Note: It’s recommended to provide a valid GTIN [gtin]
for each product. Products with an assigned GTIN, but submitted without one, may have limited visibility.
How to fix the issue
Add a valid GTIN for one or more of your products. If your product has a barcode, you can normally find the GTIN on the packaging. For more information about the validation of GTINs, refer to the GTIN Validation Guide .
Fix products one by one directly in Merchant Center
1. Go to Productsin Merchant Center, then select the Needs attentiontab.
2. Use the filter iconabove the table to find all products affected by your issue.
3. Click on the title of the product you want to fix, then click Edit product.
4. Add a GTIN to your product.
5. Select Save.
Fix multiple products at once
1. Go to Productsin Merchant Center, then select the Needs attentiontab.
2. Use the filter iconabove the table to find all products affected by your issue.
3. Select the Downloadiconto download a list (.csv) of all affected products for all issues or this particular issue.
4. Cross reference the downloaded list with your uploaded product data, and make sure that the affected products have a GTIN (using the GTIN [gtin]
attribute).
5. Reupload your corrected product data to Merchant Center using your chosen upload method. If you’re using supplemental data sources for managing GTINs or other identifiers, ensure these are correctly configured and synced with your primary data source.
Next steps
After making the requested changes, check that you’ve fixed the issue by making sure the issue is no longer listed on the “ Needs attention ” page.
Keep in mind: It may take 24-72 hours for your change to be reflected on the “ Needs attention ” page.
If you've recently updated GTINs and this affects Product Ratings review matching, allow 7-10 days for the reviews data to sync and reflect the changes.
