Purchase / Manager Purchase / User Purchase Order multi-company ['|',('company_id.child_ids','child_of',[user.company_id.id]),('company_id','child_of',[user.company_id.id])] Purchase Order Line multi-company ['|',('company_id.child_ids','child_of',[user.company_id.id]),('company_id','child_of',[user.company_id.id])]