from odoo import models class StockRule(models.Model): _inherit = 'stock.rule' def _prepare_mo_vals(self, product_id, product_qty, product_uom, location_dest_id, name, origin, company_id, values, bom): res = super()._prepare_mo_vals(product_id, product_qty, product_uom, location_dest_id, name, origin, company_id, values, bom) if values.get('sale_line_id'): res['sale_line_id'] = values['sale_line_id'] return res