Hi,

I'm trying to create a sumproduct function to look for a range of values in
two different cells as follows:

=SUMPRODUCT(--ISNUMBER(MATCH('Year 3 Raw
Data'!$Q$2:$Q$2502,{1,4,5,6,7,8,10,11,12,14},0)),--ISNUMBER(MATCH('Year 3 Raw
Data'!$S$2:$S$2502,{1,4,5,6,7,8,10,11,12,14},0)),--('Year 3 Raw
Data'!$U$2:$U$2502=0),--('Year 3 Raw Data'!$W$2:$W$2502=0))

Unfortunately this is not returning the correct answer (which someone I work
with was able to calculate using a statistical application).

If someone could let me know where my function is problematic I would be
very grateful. It appears to work if I use only one ISNUMBER(MATCH argument,
not with two or more.

Thank you.

Kind regards,
LisaM