BOBF Transaction Manager in status "Finished"

Hello,

i am writing a scenario test in ABAP and face a problem with the transaction manager.

I face this problem

METHOD switch_callstack_state.

   " if the current transaction state is "finished" (after having saved with Save&Exit Pattern),

   " no more service manager usage is allowed

   IF mv_transaction_state = gc_state_finished.

     set_application_error( ).

   ENDIF.

CleanUp does not work. What can i do to get a new transaction manager instance?

Thank you

Christian Scheffel