Hi, I have this formula below, it works well, though when the reference cells are blank I want it to return blank. But, instead it returns "red" symbol if blank reference and "Yellow" if wording is mentioned other than a check mark.
=IFERROR(IF(Done@row = 1, "Green", IF([Due date calculator]@row <= -1, "Red", IF([Due date calculator]@row <= 3, "Yellow", "Blue"))), "")