How to show actual user instead of WF-BATCH in Travel Management workflow

Hi Experts,

For this issue, there is already a detailed thread available.

Workflow Customizings in Travel Management - ERP Human Capital Management - SCN Wiki

Please check comment section for my issue.

One of the way by changing SY-UNAME to desired user inside the BOR method is not possible for me.

I am using Z BOR ZBUS2089 for my requirement. But it is not allowing to edit the APPROVE method for standard task TS20000130 (workflow task WS20000050).

Thanks in advance,

Manoj