I have a list of cases that are delayed. The list shows the case manager and
the delay code entered for the case. The delay codes that count against the
office are "WO", "AG", or if the delay code field is blank "".

I have a SUMPRODUCT formula that can count how many "AG" codes a case
manager has (Q is the column for the case manager ID#s, B is the column with
the particular case manager, AC is the column that has the delay codes):

IF(SUMPRODUCT(--($Q$3:$Q$500=B19),--($AC$3:$AC$500="AG"))=0,"",SUMPRODUCT(--($Q$3:$Q$500=B19),--($AC$3:$AC$500="AG")))

How can this be adapted to count all "AG", "WO", or blank "" codes for a
case manager?
Thanks.