Explanation/Reference:
How can I create a purchase order for consignment inventory items?
You begin by creating a purchase order with a document style for a consignment order.
Choose your consignment supplier and add the consignment items for this order.
Verify that the items were sourced by a consignment agreement and that Consignment Line is checked on the line.
Submit the order for approval.
References: https://docs.oracle.com/cloud/latest/procurementcs_gs/OAPRC/OAPRC1007479.htm