I need to limit the invoice address registration to 1. So, no more than 1 invoice address, but multiple options shipping addresses.
Is it possible? How to? I'm thinking about building custom controllers for this task, but maybe there are faster ways to do it.
Without any custom change in the code, it doesn't seem to be possible to differentiate addresses in the address table (because there is no column to indicates that it is an invoice address or delivery address).
If you need to achieve this, we recommend you to add a new column in the table DB_PREFIX_address table to identify the type of the address. You will also have to make changes in checkout and registration page to the save type of the address.