Keep cancelled workitem in SAP Business Workplace

Hi all, I would like to keep workitem in case the user cancel the execution, the activity is Edit.. it's based on Method Edit in BOR SCASE.

Here's the code:

DATA: rms_id TYPE string,

      return_value TYPE i,

     activity_state TYPE i.

*--Y7AK060922--PANDEP-cust msg 0120025231 0000575665 2007--------------

clear: g_var, g_workitem.

*--PANDEP--------------------------------------------------------------

swc_get_element container 'POSITIONTOPROCEED' g_var.

swc_get_element container '_WORKITEM' g_workitem.

PERFORM start_rmf_activity USING if_srm_activity_list=>modify

                                 object-key-guid

                        CHANGING activity_state

                                 return_value.

IF activity_state NE if_srm_request=>activity_finished_with_ok

  AND NOT g_workitem IS initial. "only in workflow

  exit_cancelled.

ENDIF.

IF return_value <> 0.

  exit_return '1000' 'SCMG_BOR_CASE->EDIT'

              'start_rmf_activity' return_value space.

ENDIF.

What happens with exit_cancelled?

Does that statement retain workitem in inbox?

Regards,

Karina