# Policy validation failures
<a name="policy-validation-failures"></a>

 **Symptoms:** - 400 Bad Request errors when creating policies - Policy creation fails in Admin UI - "Invalid policy JSON" error messages

 **Solutions:** 

 **Check JSON syntax:** 
+ Validate JSON structure using online JSON validators
+ Ensure all required fields are present
+ Verify transformation parameter types match schema requirements

 **Review transformation limits:** - Policy size limit: 400KB - Ensure transformation values are within valid ranges