2 dropdown menu in serial Follow

Hi everybody,

I am trying to connect 2 different dropdown menu in serial connection.

Both of them are connected to the same DB:

- in the first one i would select the familty of the products

- in the second one I would select the specific code

We need this kind of selection because one products' family can contain from 3 to 50 codes, so I would implement the familty selection so to reduce the quantity of lines

any solution?

thank you