How to transfer assigned open PO to another buyer.

Using oracle build-in function : Mass Update of Buyer Name on Purchasing Documents 

1.      Reportà RunàOpen Purchase Orders Report(by Buyer) 

              * Can see   which  open  PO on  specific buyer.

2.      Reportà Runà Mass Update of Buyer Name on Purchasing Documents 

             *Assign  open PO from A buyer to B buyer.