=SUMPRODUCT((ISNUMBER(MATCH(B1:B10,{"Jan","Feb","M ar"},0)))*(C1:C10="John")*(D1:D10="Yes"))

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HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my addy)

"ferde" wrote in message
...
I wonder if someone could tell me which formula to use to do the following:

A1= the sum of the yes responses from each sales rep in a quarter
(Jan-Mar)

Month SalesRep Response
Jan John No
Feb John Yes
Mar Bill Yes
Apr John No

Answer = 1 yes response for JOHN in the first quarter (jan-Mar)

Answer = 1 yes response for Bill in the first quarter

I am using name ranges .i.e Month SalesRep Response

Thank you in advance for any help you can provide
Ferde