How to pass a list as input parameter to a variable

[Oliver_F]

Hey there,

I am really stuck and hope someone is able to come up with the right syntax.

vVar =

     Count(

        {$<

            %Country = {$1}

        >}

    DISTINCT Customers) > 0

If i count the customers for USA:

=vVar('USA') --> Works great

But how do I count USA and Canada?

=vVar('''USA'',''Canada''') does not do it.

I tried a lot of different syntaxes and I am not able to find any thats is working for me.

All the best and thanks for your help!

[antoniotiman]

Is this typo ?

%Country = {$1},

[Oliver_F]

I reduced the Code for my Post and forgot to remove the coma. I corrected the original Post, but this is not the problem.

Still not able to pass a list as parameter.