I'm trying to write an IF formula to return a status symbol based on if a date column in my sheet is in the past OR is blank. Smartsheet keeps telling me my syntax isn't quite wrong, and I'm having trouble seeing where I've gone wrong. Here's what my formula looks like right now.
=IF(ISBLANK([Expiration Date]@row), "Red", (TODAY() - [Expiration Date]@row > 0, "Red", IF(TODAY() - [Expiration Date]@row > -30, "Yellow", "Green")))