Self-taught Excel user, First-time post: I am trying to use index match to return product serial numbers ($AH$2:$AH$157) based on inspection due dates ($AK$2:$AK$157) (i.e., all products due in 2024). Date array is in dd/mm/yyyy format, with some zeros. Have done SUMPRODUCT for the year 2024 with return of 7, need to know which 7 products are due without sorting as the sheet is source to others.