Call Transaction behaviour

In my program I am passing on some values to Call Transaction 'CJ9C' using bdc_data. The objective is the called transaction should show result to the user and then the control should be returned to the calling program once user presses back button. However its not happeneing and the called transaction does NOT show anything to user but the control immediately returns to the calling program.

I tried sevaral options from ctu_param but its not happeneing.

Any clues would be helpful.

Thanks in advance