Hello Skip
Thanks for the help, when i try it on my sheet i get a value of 1565 , when I am expecting a value of 62, which I get by using static ranges.
=SUM(IF((Support!$B$1:$B$1501<=G87)*(Support!$P$1:$P$1501="")+IF(Support!$P$1:$P$1501>G87,Support!$B$1:$B$1501<=G87),1,0))...