partner-contact/partner_financial_risk/models/res_config.py

# -*- coding: utf-8 -*-
# © 2016 Carlos Dauden <carlos.dauden@tecnativa.com>
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).

from openerp import fields, models


class AccountConfigSettings(models.TransientModel):
    _inherit = 'account.config.settings'

    invoice_unpaid_margin = fields.Integer(
        related='company_id.invoice_unpaid_margin')