Event for travel expense work flow "WS90000050"

Hi All ,

I am trying to configure standard travel request and travel expense application on ESS.

I am using two standard templates WS90000040 for Create travel request

and WS90000050 for Create Travel Expense.

But problem is that both workflows start with same event "REQUESTCREATED" of business object "BUS2089".

Since standard process says that once employee's travel request is approved then only he/she can apply for

Travel expense . But in this case both wf gets started through same event "REQUESTCREATED".

Is there any other event for create travel expense application ?

Thanks in advance

Abhay