event thru chg doc

Question: Hi every one,

I had used QINF change doc object to trigger BUS2101.Change Event, I did event linkage thru SWEC.

It was working,but suddenly started giving error update failure while changing Q-info thru QI02.

I debug thru transaction, could not find the palce , but from shortdump it shows error raise from WS_QUERY function

IF GUI_EXIST IS INITIAL.
RAISE NO_BATCH. -->
ENDIF.

if anybody come accors this situation??

your suggestion welcome!!!

Answer:
This is error due to Object delegation is GUI specific. after removing it works.
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