problem setting formula

[Guest]

end result

formula that will provide monthly dollars sold for a sales rep for a certain
product
excel worksheet has columns for month, actual date, $sold, rep name, product
name

 

[Guest]

where your source data is
D1100 = sales dates
E1:E100 = rep names
F1:F100 = product name
G1:G100 = sales dollars

your criteria is
A1 = month (integer)
B1 = rep name
C1 = product name

=SUMPRODUCT(--(MONTH(D1100) = A1), --(E1:E100=B1), --(F1:F100=C1), G1:G100)

change ranges as needed. sumproduct cannot accomodate an entire column (but
D165535 is fine)