VA01 validate shipto is assign to soldto in customer master

Hello,

When I create a sales order using VA01 after enter the "sold to party", one popup is opened to select the "ship to party".

I select one of the "ship to party" assigned to this "sold to party".

The problem is that the system allows me to change this "ship to party" for another "ship to" that was not assigned to this "sold to" in the customer master.

Why is it possible? There are any way to allow the change of the "ship to" only for the assigned to the "sold to party" selected?

Regards,

Ale.