If Enable the “Enable defaulting of fiscal data from Invoice account” feature, you can define what fiscal information will be taken to the sales invoice, from customer account or invoice account.

There are some sales order invoices for a Belgian customer with a customer set in invoice account located in other country different to Belgium. When generating Belgian invoice turnover report, these invoices are not printed.

There is a workaround by using Belgian Enterprise Number in primary country address in customer set as invoice account but it does not work when purchasing combination is used.
This consists on multiple customer accounts in Belgium (with different Enterprise numbers) that have all the same invoice account located in other country (for instance, Germany)
In the invoice account, just one primary address with a Enterprise number can be set.

This report is mandatory for Belgian companies and correct invoice details must be retrieved.

That is why this report should take information directly from the customer invoice and not from customer selected as invoice account.