As well as sumproduct, you could simply use

=countif(K:L="Yes")

(I've ignored the sheet1 as it's less typing for me that way!)

Chris Morley wrote:
Please some one help. i need to count cells over 2 colomns only if those
colomns contain yes.

col 1 col 2
yes no
yes yes
yes no

The formula i need, i have used before but lost...! typical. I have tried
using a countif formula and i am sure this was used before with a equal to

=COUNTIF(Sheet1!K:K,Sheet1!I:I="yes") this returns a valye of 0 and i know
that it shoule have counted 6. can any one help

Chris

i have tried =countif(K:K