I use this formula to track a recall list; It will tell me if a tool is due,(within a number of days),overdue,or OK. Works fine but I would like to add a "Not Required" if the due date cell,(K3), is left blank.
=IF(2*(K3(K3>=$L$2)=0,“OK”, IF(2(K3=$L$2)=1,“DUE”,“OVERDUE”))