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Merchant Custom Label Troubleshooting Guide

Review custom label fields used to segment merchant campaigns.

How to diagnose and repair the issue

  1. Identify the custom_label_0 to custom_label_4 columns
  2. Check spelling and value length
  3. Keep campaign categories stable across updates
  4. Remove accidental placeholders or malformed values
  5. Verify grouping in the target advertising platform
⚠ Before exporting

Custom labels are optional and represent merchant strategy rather than universally required fields.

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.