I'm trying to add an "isblank" to this long formula and keep getting a "syntax" error message. Can anyone help? I want to add - if the "End Date" row is blank then this cell should also be blank. Here's my formula without the Isblank:
=IF(AND([% Complete]@row < 1, [End Date]@row < TODAY()), "Red", IF(AND([% Complete]@row < 1, [End Date]@row <= TODAY(7)), "Yellow", IF(AND([% Complete]@row = 1, [End Date]@row >= TODAY()), "Green", IF(AND([% Complete]@row = 1, [End Date]@row < TODAY()), "Gray", ""))))