=sumproduct(--(c2:c50="700")*(a2:a50=date(2008,10,12)))

hth
--
regards from Brazil
Thanks in advance for your feedback.
Marcelo



"MAANI" escreveu:

This is what I have:
A (Date) B (Emp #) C (Product #)
10-Oct-08 2 700
10-Oct-08 3 710
11-Oct-08 3 700
12-Oct-08 1 702
12-Oct-08 1 700
12-Oct-08 2 700
12-Oct-08 2 700
12-Oct-08 2 740

I want a formula to count how many employees worked on a certain product in
a certain day . Example: on 12-Oct-08,2 employees worked on product #
700.Thanks