Project / Manager Project / User Sales / User Project multi-company ['|',('company_id','=',False),('company_id','child_of',[user.company_id.id])] Task multi-company ['|',('company_id','=',False),('company_id','child_of',[user.company_id.id])] Tasks According to User and Project ['|','|','|',('user_id','=',False),('user_id','=',user.id),('project_id.members','in', [user.id]),('project_id.user_id','=',user.id)] Project Managers: all tasks from all projects [(1,'=',1)]