I have a list in SharePoint with a date column "Complete Date". I want to add a control to only allow users to select the complete date in current quarter. I used this formula:
=IF(TODAY()>=DATE(YEAR(TODAY()),10,1),OR(ISBLANK([Complete Date]),[Complete Date]>=DATE(YEAR(TODAY()),9,30)),IF(TODAY()>=DATE(YEAR(TODAY()),7,1),OR(ISBLANK([Complete Date]),[Complete Date]>=DATE(YEAR(TODAY()),6,30)),IF(TODAY()>=DATE(YEAR(TODAY()),4,1),OR(ISBLANK([Complete Date]),[Complete Date]>=DATE(YEAR(TODAY()),3,31)),OR(ISBLANK([Complete Date]),[Complete Date]>=DATE(YEAR(TODAY()),1,1)))))) However, this causes error when I edit any other columns for the existing records with the complete date in previous quarter too, even though the complete date is not being touched. Is there any way I can only apply the validation on the amendment of the Complete Date?