TimeSheet Approval Process workflow

Hi All,

Please let me know how time sheet standard behavior of approval workflow.

I ran the timesheet approval process, I found in the event trace, the following business objects are showing for the process.

When employee requests for a timesheet approval, there is no workflow triggered ( no receiver in the SWEL), it is showing BO IDOCPACKET and event MASSINPUTFINISHED and when approval approves the request it is triggered the workflow (receiver is WORKITEM) single step type.

Please clarify me on

1. Why IDOCPACKET is triggered?

2. Why ATTENDENCE is triggered?

3. whenever a time sheet request is created by user, approver will get notifications, where these configurations have been maintained?

4. When approver approves/rejects the request, initiator will get the notifications, where these configurations have been maintained?

Thank You in advance.

Regards,

Pavan.