I have data in column W that has multiple answers to a question. Example (A, C, or A, H, or B, D,). I'd like to count all the As with a date equal to or prior to 10/1/17. I tried the formula below and know that I'm missing something but just not sure.
=COUNTIFS(data!Z2:Z10681,"<171002",data!W2:W10681,"A,")
=COUNTIFS(data!Z2:Z10681,"<171002",data!W2:W10681,"A,")