The Audit Suggestion warning is issued in the following situations:

You should change the Log Error property to Yes because, since the Error Handler is catching all exceptions, it is advisable that detailed information about that exception is logged by OutSystems Platform. This might allow you to discover the reason for the exception. Learn more about Logs of exceptions.

Clicking the symbol will take you directly to the Error Handler element in your flow.

See Also

Handle Exceptions | About Warning Messages