For foreign customers (out of Italy) who do not have a VAT number, "0000000" should be used as VAT code. opw-2325991 closes odoo/odoo#58204 X-original-commit: c5589bf8880e109990d902bb905c7de967910524 Signed-off-by: Anh Thao PHAM <kitan191@users.noreply.github.com>