Once the Subcontract is fully executed, how will the Subcontractor get paid for the work they are doing?

Subawardees will invoice your department via the Ariba network. Your department is responsible for receiving and approving the work for which you are being billed. Finally your department will release the invoice for payment via the Ariba network. UW Accounts Payable will receive the approved invoice and pay the subawardee via the method set up in the Ariba network.