We setup both header and line workflows for expense report. If we approve all lines, status of header and all lines become approved. But if we reject all lines or some of the lines, the status of header is still in review and not changed. At the end, some lines are approved, some lines are rejected but header is still in review and they are not compatible. If some of the lines are approved and some of them are rejected header status should be changed to "partially approved", if all lines are rejected header status should be changed to "rejected".