Incomplete or invalid matching configurations can lead to tainted results and poor performance. To help prevent these issues, the add-on can check configurations and provide a report that highlights any errors or warnings.
Just because a validation report turns up issues, it will not prevent the add-on from executing an enabled and active matching policy. If the report turns up serious issues, you might want to pause the matching configuration until you resolve them.
To validate a matching configuration:
Navigate to Table activation and settings.
Select one or more configuration entries.
Run the validation:
From the Actions menu, select Validate configuration.
Select Activate matching at the top of the screen. Note that this option will enable any configuration instances that are not already enabled. However, running this on a configuration that is enabled has no effect other than validating the configuration.