I wrote this fomula in a cell in the workbook <book5>
=SUMPRODUCT([Book4]Sheet1!$A$2:$A$16=A2)*[Book4]Sheet1!$B$2:$B$16
the result of the formula is 0(not #value)
Does it mean this type of using the sumproduct function is not allowed or
have I done anything wrong?.
of course later I tentatively solved the problem by using sumproduct in
book4 itself and transferring the data to Book5 by using vlookup
function.because Book5 contains unique values of column A of Book4.
thanks
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