Please help, i have 2 sheets. One sheet contains week no. i.e. the week in which a member is absent. I wanted to count week numbers from that column only if week number is mentioned in other sheet under (multi select cell). Ì used this COUNTIFS({Team Vacation Planner Range 2}, [Assigned To]@row, {Team Vacation Planner Range 1}, CONTAINS([Week Number]@row, @cell)) but it's not working.