I have a COUNTIF formula that I can't get to work once I add an ISBLANK statement.
This is the fomula that works:
=COUNTIFS({Payment Type}, =$Status@row, {Case Date}, MONTH(@cell) = 8, {Case Date}, YEAR(@cell) = 2020, {Status}, ="Completed")
When I try to account for rows where the Payment Type is blank, I tried this formula:
=COUNTIFS({Payment Type}, ISBLANK(@cell), {Case Date}, MONTH(@cell) = 8, {Case Date}, YEAR(@cell) = 2020, {Status}, ="Completed")
However, I'm getting an #INVALID DATA TYPE error. What am I doing wrong?