Make "VALUE" field more self-explanatory. Depending on the selected metric, there should be some kind of explicit hint what and in what format should be entered in the input. Add an example inside of the field, tooltip, etc.
There are some options that become irrelevant under certain conditions, e.g. timeframe and alert frequency for >0 poor calls, call volume exception for number of poor calls or legs, target value for company wide target, etc.
Can exceptions be reworked as inclusions and moved to "advanced options"
When setting an alert, it's easier to think about it from the point "What do I want to monitor" rather than "What don't I want to monitor", so it's logical to flip exception to inclusions and convert them to some kind of advanced rules.