I am working with the sum production function & I can't figure out how to get
the function to return a blank cell with no data is in the specified cell.

Here is the function I'm using.

SUMPRODUCT((A2:A450=A7)*(B1:BG1=B6)*(B2:BG450))

Column A2- includes ID #'s, while row 1 includes dates. The data set
(B2-B45) has some blank cells, & I want it to return a blank, & not a 0,
however some cells have a 0, and I want the 0 to be returned.

I feel I'm missing something really obvious. Any help would be greatly
appreciated!

Thanks,
Josh