Stop Requisition from returning to buyer pool after negotiation

Hi,

After completing the negotiation, Outcome with BPA or Purchase Orders. The requisitions are returned to buyer pool in the process requisition area for those negotiations which are awarded partially or if there is any change in negotiation lines during the negotiation. We understand, this is the intended behavior but the requirement is to stop the requisition to return back to the buyer pool. Since we are using dummy line to create negotiation with offline excel sheet for comparison and after awarding the lines will be directly added to BPA. So the requisition should be cancelled after the negotiation is process