Hello Chetan !
What is the event that triggers the IDOC as you see in SWEL transaction ? Is it INPUTERROROCCURRED ?
Have a look at the triggering tab of the task TS00008075.
Is that event INPUTERROROCCURRED that triggered is seen in triggering tab ? If so, just undo the binding i.e., uncheck the check box under binding column for the event INPUTERROROCCURRED and save it.
That's it ! No more instances for the event INPUTERROROCCURRED would be created.
Regards,
S.Suresh.