DNZEAP412E: No event system variable is specified.

Explanation: When Custom is selected for System Variables, at least one keyword, operator, and value must be added to the filter.

Operator Response: Specify one or more event system variables to add to this filter. Select a keyword, select an operator, and specify a value for the event system variable, then click Add to add them to the list of event system variables. Otherwise, select Default for Event system variables to include.