Hello,
I am trying to use the countifs to count a reference sheet when a checkbox is checked and a date is blank.
I know the first part is "=COUNTIFS({referenced sheet checkbox}, 1," I'm just not sure what to use for the second portion.
I think the closest is:
=COUNTIFS({reference sheet checkbox}, 1, AND({referenced sheet date}, ISBLANK(@cell)))
The error message with this one is INVALID DATA TYPE.
Any suggestions?