ESS Workflow Travel Claim or Expense Report not working, WS20000040

Hi Expert.

I want to ask your help about WS20000040 workflow.

I already activate or config the workflow through t-code SWE2 (object type BUS2089, event created, receiver type WS20000040, receiver FM SWW_WI_CREATE_VIA_EVENT_IBF).

But when i test using ESS portal, using below proccess.

create expense report->normail claims->enter receipts->review->save and send for approval.

then i checked at t-code SWIA, i dont see the workflow log regarding this task.

why is the workflow not triggered?

please help me

thanks.

Regards,

Darmadi