=SUMPRODUCT(--(A1:A100=M1),--(B1:B100=M2),C1:C100)

--
---
HTH

Bob


(there's no email, no snail mail, but somewhere should be gmail in my addy)



"Shi Gharib" wrote in message
...
how can I use the sumif formula following 2 conditions in different cells
one
of the conditions is in a merged cell
--
Shi Gharib