Diagnostics in Merchant Center is a tool that helps you identify and fix issues with your product feed and website data. It shows errors, warnings, and opportunities that may affect how your products appear in ads or free listings.
How Diagnostics works
The Diagnostics tab analyzes your product data and checks whether it meets Google’s requirements. It reviews:
- Product feed quality
- Missing or incorrect attributes
- Policy violations
- Website or landing page issues
Problems are categorized by severity so you know what to fix first.
Types of issues
- Errors – Products are disapproved and cannot show in ads
- Warnings – Products are approved but performance may be limited
- Notifications – Suggestions to improve data quality
Why it matters
Healthy product data is essential for campaigns like Shopping and Performance Max. Diagnostics helps ensure your products remain eligible and competitive within Google Merchant Center.