from odoo import models, api class AccountFiscalPositionTax(models.Model): _name = 'account.fiscal.position.tax' _inherit = ['account.fiscal.position.tax', 'pos.load.mixin'] @api.model def _load_pos_data_domain(self, data): return [('position_id', 'in', [fpos['id'] for fpos in data['account.fiscal.position']['data']])]