I am trying to use something like the following:

a.
=SUMPRODUCT(($AF$3:$AF$465={1,2,6,12})*($AT$3:$AT$ 465={1,2}))

which returns #N/A

It works with this one:

b.
=SUMPRODUCT(($AF$3:$AF$465={1,2,6,12})*($AT$3:$AT$ 465={1}))

... but of course will not give me the same # since it's not counting 2s
in AT.

So sumproduct does not seem to like dealing with more than one array
enclosed in {} .. at least the way I've tried it.

I know I can use *((AT3:AT465=1) + (AT3:AT465=2)) but I would like to
know if there's a way to do it in the style of formula a. above., or
other style that's shorter than AT3:AT465 =1 + AT3:AT465=2 + etc..

thanks
Dave R.