SIMULATION
Back-to-Back Supply Creation Flows
You can set up Oracle Fusion Cloud applications that support back-to-back fulfillment to trigger
supply creations flows (buy, make, transfer, and on hand) after a sales order is entered and
scheduled.
Each variant of the back-to-back flow differs in the supply document that's created and the supply
execution application in which the document is created. Depending on the source of the item, supply
is provided from manufacturing, procurement, or inventory. Then, after the supply is received into
the fulfillment warehouse, the back-to-back order is ready for shipment to your customer.
The following table describes the supply creation flows and associated supply document supported
for each flow when using back-to-back fulfillment.
Back-to-Back Supply Creation Buy Flow
The supply document for a back-to-back buy flow is a purchase order. Based on supply
recommendations from Oracle Global Order Promising, a purchase order is created and reserved
against the sales order. When the purchase order is received by the supplier, on hand is created to
ship out the back-to-back sales order.
The following figure shows the back-to-back supply creation buy flow.

Pretty sure this matches what I've seen in actual exam questions: after the sales order is scheduled, the system generates a purchase requisition first if there's no inventory. The answer "See the" fits the step-by-step logic here, though not 100% obvious from wording. Others agree?
Yeah, seen a similar question in practice sets. The flow starts with the sales order and then creates a purchase requisition, then a PO if no stock is found. "See the" matches that step sequence pretty well I think.
Can someone clarify if the buy flow always means a purchase order gets created, or does it depend on Oracle finding on-hand stock first? If there’s no inventory, I get that PO generation is triggered, but is there any scenario where buy flow skips that step?