I am trying to sum column D based on non-blank containing dates in column C. I cant get it to work. I have tried: =sumifs(c3:c100, d3:d100, NOT(ISBLANK)) =sumifs(c3:c100, d3:d100, ISDATE) =sumif(d3:d100, c3:c100, NOT(ISBLANK)) None of these work. Help!
Solved by X. Q. in 25 mins