from odoo import models class AccountDebitNote(models.TransientModel): _inherit = 'account.debit.note' def _prepare_default_values(self, move): default_values = super()._prepare_default_values(move) if move.company_id.account_fiscal_country_id.code == "HU": default_values.update({ 'delivery_date': move.delivery_date }) return default_values