DocuSign to Oracle Fusion including PO Pdf during Signature stage

Summary:

When we prepare document for signature, System by default including PO PDF along with other contract documents and combining them together when sending for signature. But we want only the contract documents to be sent for signature and once that document is signed and completed by all parties then wen we click view pdf then we need to see PO PDF along with contract Documents. Please check explanation below:

Step 1: We have Agreement Named "ABC" to be signed by Supplier and our internal people.

Step2: When we Prepare for the document in Purchase Order, System by default pulling PO PDF and then when we upload Agreement "ABC" then system combining PO PDF and Agreement "ABC" together and sending for Signature which is problem to us.