=SUMPRODUCT(--(B2:B2000=E2),--(EXACT(E2:E2000,VLOOKUP(E1,A2:B2000,2,FALSE))),C2: C2000)

--
HTH

Bob

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

"IPerlovsky" wrote in message
...
How would I incorporate 2 criterion into the SUMIF function? For example,
in
the following example I have the formula look to the A2:A2000 range for
the
value referrenced in C2 and sum only those numbers in range B2:B2000 that
meet this criteria. That's the easy part. How would I add another layer
of
criteria to the formula below in addition to that specified by "C2" - say,
EXACT(E2,VLOOKUP(E1,A2:B2000,2,FALSE))=TRUE?

=SUMIF(B2:B2000,E2,C2:C2000)

thx.
--
iperlovsky