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.
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iperlovsky