EBS Purchasing approval routing

Hello,

We use the employee/supervisor structure for purchasing approvals but we want to be able to route specific outworker REQs/POs to the QA department in addition to the normal approvals. I know we could have the preparer forward a PO to QA and have them forward it back but is there a better solution? From searching the forums it sounds like the Approvals Management Engine module may be what we need but we are currently not licensed for it. Thanks in advance for reading