To view the properties of the Approval List Routing subprocess, select the process in the navigator tree, then choose Properties from the Edit menu. The Approval List Routing subprocess has a result type of PO Approval List Routing Result, indicating that when the process completes, it has a result of Document Approved, Reject, or Return. These results correspond to the lookup codes in the PO Approval List Routing Result lookup type in the PO Standard item type.

This process activity is not runnable, indicating that it cannot be initiated as a top-level process to run, but rather can be run only when called by another higher-level process.

This subprocess begins at node 1.

This subprocess starts when a requisition requires additional approval. Node 2 finds the first (or next) approver in the approval list. If that approver is invalid (for example, the approver left the company shortly after the requisition was submitted), node 3 rebuilds the approval list without that approver. If node 3 cannot rebuild the approval list (for example, because of a system failure or a problem with the approval hierarchy), this subprocess ends at node 4, and the workflow returns the requisition to the requester.

At node 5, this subprocess branches differently depending on the approver's response: a rejection branches to node 6, a Forward action branches to node 8, an approval branches to node 9, and an Approve And Forward action branches to node 10. Each of these nodes records the approver's response in the PO_APPROVAL_LIST_HEADERS and PO_APPROVAL_LIST_LINES tables and updates the action history accordingly.

Node 11 checks if the approval list is empty before attempting to finish the approval routing. Node 12 checks if the requisition is Pre-Approved. (If the requisition has been approved, its status is set to Pre-Approved until the Approve Requisition subprocess or Reserve Before Approve subprocess later sets its status to Approved.)