Thanks Sivaraj, but I'm not following you here? Maybe showing my current expressions will help in how I could build them into your set analysis solution? I'm sure all the data is linking correctly in the background to do this, it's just getting the script to do it!
The "this month Target" target calculation is:
=Sum(if(JT_TargetMonth = Month(Now(2)) and JT_TargetYear = Year(Now(2)),JT_Target))
The correct clients to count the targets against is:
=Count(DISTINCT if(IsNull(JT_UniqueClientID)=0, JT_UserName)