from odoo import api, models, fields class ResPartner(models.Model): _inherit = 'res.partner' ubl_cii_format = fields.Selection(selection_add=[('oioubl_201', "OIOUBL 2.01")]) def _get_edi_builder(self): if self.ubl_cii_format == 'oioubl_201': return self.env['account.edi.xml.oioubl_201'] return super()._get_edi_builder() @api.depends('country_code') def _compute_ubl_cii_format(self): super()._compute_ubl_cii_format() for partner in self: if partner.country_code == 'DK': partner.ubl_cii_format = 'oioubl_201'