from odoo import models class ResSupplierInfo(models.Model): _inherit = 'product.supplierinfo' def _compute_is_subcontractor(self): for supplier in self: boms = supplier.product_id.variant_bom_ids boms |= supplier.product_tmpl_id.bom_ids.filtered(lambda b: not b.product_id or b.product_id in ( supplier.product_id or supplier.product_tmpl_id.product_variant_ids)) supplier.is_subcontractor = supplier.partner_id in boms.subcontractor_id