Thanks in advance to anyone who offers help.
I'm using the following formula to automatically group line items into the month they belong to (this is calculated from a "Modified Date" column which is automatically updated).
It's working fine for "October" but not for "November" and I can't figure out why. I've tried separating the clauses and I still get "Incorrect Argument" when calculating for November. Any ideas?
Formula:
=IF(AND([Modified Date]@row >= DATE(2023, 9, 30), [Modified Date]@row <= DATE(2023, 11, 1)), "October", IF(AND([Modified Date]@row >= DATE(2023, 10, 31), [Modified Date]@row <= DATE(2023, 12, 1), "November")))