AME: No Approver Found For Purchase Requisition (ERROR - Email address in user define form is different from email address in the employee enter form) (Doc ID 1117369.1)

Symptoms

When attempting to approve a requisition using the Approval Management Engine (AME), the following error occurs when using core Purchasing.
The issue does not occur in iProcurement when creating the exact same Requisition.

Searching further in wfstatus the following can be observed:
- Approval List Routing Using AME/Get Next Approvers Using AME
- COMPLETE
- INVALID_APPROVER

PO_WF_DEBUG shows:

    REQAPPRV 372-1389 PO_REQAPPROVAL_INIT1.Ins_actionhist_submit: 02
    REQAPPRV 372-1389 Get_Next_Approver: 001
    REQAPPRV 372-1389 Get_Next_Approver: 002-372-REQUISITION-PURCHASE
    REQAPPRV 372-1389 Get_Next_Approver: 003- getNextApprovers4(). Approvers :1 -- Approval Process Completed :W
    REQAPPRV 372-1389 Get_Next_Approver: 004 - l_position_has_valid_approvers :N

The issue can be reproduced at will with the following steps:

   1. Create a requisition in core Purchasing
   2. Click on "Forward to" and the next approver is defaulted appropriately
   3. Submit the requisition for approval
   4. A notification informing "No Approver Found" is sent by the system

Cause

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