Auto creation of PO

Content

Hi all

if am creating a requisition without an agreement (BPA) on which conditions should the PO get auto created?
i have the following set up

• - Configure Proc bu:
  • Buyer is left empty
  • Autogenerate orders from requester-negotiated requisition lines is checked
•  Create orders immediately after requisition import in the configure req BU is checked
• Negotiated check box is ticket

is there any set up missing?

Do i need to set up buyer assignment rule for all suppliers? 

Version

20B