RFQ in Purchase Requisition Work Flow


I have been Trying to Complete the Purchase Requisiton with the Help of RFQ, But It's not Happening,

Is anyone has Complete Process of Purchase Requisiotion Starting From PR Submit, RFQ, Approval ,and Automatic / Manual Purchase Order.

Also is it necessary to Add Vendor Name While Creating an Submitting purchase Requisition as it is Possible that User can not have Vendor Selected at the time of Purchase Requisition.


Please Help as the Matter is Very urgent.

Thank You.