Commodity Based BPA's and Sourcing Rules

Hi all,

We are on R12.1.3 and are wondering if it is possible to create commodity based sourcing rules?

I've had a tinker with the setup and can't get it work.

I've created a BPA(global ticked) with several Service type lines, (we have no items setup, we don't use inventory).

I've also setup a store in iProc so users can pick those 4 lines.

However, after the requisition has been approved, it creates a new PO number. (It does update the BPA's released amount).

I was under the assumption that it would create a Release against the BPA number.

In the Approved Supplier List, i have created an entry with a type of Commodity and entered the commodity that is used on the BPA.