Show only excluded values in listbox based on other listbox

[udaya_kumar]

hi

i am using an expression to show excluded values like this

=aggr(only({1-$}PRODUCT_NAME),PRODUCT_NAME)

but the PRODUCT_NAME depends on the market_name.

so if we change market_name, then the product list changes dynamically

so i dont know to apply second filter to this expression.

can anyone help me?

i need to add market_name filter to this expression, but i dont know where to add it exactly