I'm trying to write a formula using an IF/OR statement to set a flag (for the Revised Timeline column) when NA has been selected from a drop-down menu in the any one of five columns (e.g., Reason for Revised Analysis End Date). The flag should turn red when anything other than NA is selected. If NA is selected, then no red flag. See the attached image.
Or, if it's easier, I could set the flag to turn red when the dates are changed in any of the five End Date columns.
