Restrict Employee Able to Self-Approve Their Own Expense Reports in AME Approval Process

Hi All,

I have requirement to restrict self approval of own expense reports in AME approval process when vacation rules set or delegated approval by supervisors in R12.

We are using AME for expense approval process, please find below scenario that we come across.

Scenario

1. Expense created by employee 1

2. Expense approver is supervisor of employee 1

3. Supervisor delegate/transfer/worklist access approval to employee 1

4. Employee 1 is able to view the approval notification and approve

We need to restrict and raise an error message when user try to approve this expense.

Kindly suggest any idea how to achieve this.

Thanks in advance.