You can enter the following formula in the cell where you want to see the Overdue
or Not due
result:
=IF(ISBLANK(O10),"",IF(O10<TODAY(),"Overdue","Not due"))
This formula first tests if the source cell is blank. If it is, then the result cell will be filled with the empty string. If the source is not blank, then the formula tests if the date in the source cell is before the current day. If it is, then the value is set to Overdue
, otherwise it is set to Not due
.