I'm trying to have a symbol turn "yellow" if the number of check boxes in a selected is even (and >0), or "red" if uneven. To do this I made a hidden column with a formula counting how many boxes were checked:
=COUNTIFS([ColumnA]@row:[ColumnF]@row, 1
Then in the symbol column, wrote the following formula:
=IF([HiddenColumn]@row >= 1, AND(IF(ISEVEN([HiddenColumn]@row), "Red", "Green")))
But now I get an "Invalid Data Type" error message in the symbol column when any amount of boxes are checked. Help please!