Travel Expenses request not going 2nd level via POWL

Hello All,

First time I am working with POWL concept.

In travel expenses workflows, we have 2 level approvals. My problem is, when a manager(1st level approval)  approved travel expense report from his UWL, it is triggering to 2nd level approval successfully but if he is approving with POWL, the workflow is not going to second level approver, and it is completed simply with a changed event.

We are using standard WS20000040 workflow.

Why ""changed "" event triggered ?

Why the request is not going for second level approval?

Please help me.

Regards,

Pavan.