from odoo import models, api class AccountInvoiceSend(models.TransientModel): _inherit = "account.invoice.send" @api.model def _get_default_mail_partner_ids(self, move, mail_template, mail_lang): """ Allow archived partners when sending invoices via the 'Send by Email' wizard. """ wiz = self.with_context( active_test=False, include_archived_partners=True, ) return super( AccountInvoiceSend, wiz )._get_default_mail_partner_ids(move, mail_template, mail_lang)