I couldn't get either to work. Does it matter if both spreadsheets are open?
Also I forgot to mention that I'm using Excel 2003.

"Eduardo" wrote:

Hi,
try

.=SUMPRODUCT(--('[Production.xls]Sheet1'!$B$2:$B$2139=B9),--('[Production.xls]Sheet1'!$G$2:$G$2139=X9),--('[Production.xls]Sheet1'!$I$2:$I$2139=D9),'[Production.xls]Sheet1'!$D$2:$D$2139)

"brownmre" wrote:

I am working with 2 worksheets and cannot get the sumproduct to work. I need
to sum quantities from 'Production' worksheet to 'Inventory' worksheet, where
criteria in 3 columns of 'Production' matches criteria from 'Inventory'. My
formula below is giving me a '0' quantity instead of the actual total of
'1440'. Any idea where I am going wrong?

=SUMPRODUCT(('[Production.xls]Sheet1'!$B$2:$B$2139=B9)*('[Production.xls]Sheet1'!$G$2:$G$2139=X9)*('[Production.xls]Sheet1'!$I$2:$I$2139=D9)*('[Production.xls]Sheet1'!$D$2:$D$2139))