Delete Work Item from PO Releaser's Inbox during Workflow

Question

Hi All
How can I delete the previous Work Item that was created in the PO Releaser's Inbox if a PO was changed which re-triggered the PO Release workflow but this time to a different PO Releaser.
The workflow is working correctly, i.e. creating the new release item in the new releaser'd Inbox but not deleting the old Work Item for the previous releaser.
Any idea on how I can accomplish this?
Kind Regards
Utian Goliath

Answer 1

PLease refer the below stuff................create a task and put the code inside the method.This task should be fisrt step in your workflow.
User sets doc to Complete from FBV2 , Complete event triggered and workflow triggered.
Workitem goes to approver .
Now , the user immediately changes doc from FBV2 , sets it to Complete again and workflow triggered
workitem goes to the same approver for the same document.
SAP_WAPI_WORKITEM_TO_OBJECT - Worklist table will giv all parent id's for the object key concatenation of
com code , doc no and fiscal year.
SWP_WORKFLOW_INSTANCE_DELETE - Pass the parent id and will delete the entire instance but not
parent workitem id.
SAP_WAPI_WORKITEM_DELETE - Pass parent id everything will be deleted .( Check_final_state = blank ).
No trace found in SWI14 and SWI2_FREQ.
To remove the previous workitem , create a method in the begining of the workflow , use F.M.
SAP_WAPI_WORKITEM_TO_OBJECT to get the workflow id's and then
SWP_WORKFLOW_INSTANCE_DELETE or SAP_WAPI_WORKITEM_DELETE to delete the previous instance.
data : lt_worklist type table of SWR_WIHDR,
       lw_worklist type SWR_WIHDR,
       lv_objkey type SWOTOBJID-OBJKEY,
       lv_return type sy-subrc,
       lv_id type SWP_HEADER-WF_ID.
concatenate object-key-sourcecompanycode object-key-documentn
object-key-fiscalyear into lv_objkey.
CALL FUNCTION 'SAP_WAPI_WORKITEMS_TO_OBJECT'
EXPORTING
  OBJECT_POR                     =
   OBJTYPE                        = 'FIPP'
   OBJKEY                          = lv_objkey
  TOP_LEVEL_ITEMS                = 'X'
  SELECTION_STATUS_VARIANT       = 0001
  TIME                           =
  TEXT                           = 'X'
  OUTPUT_ONLY_TOP_LEVEL          = ' '
  LANGUAGE                       = SY-LANGU
  DETERMINE_TASK_FILTER          = 'X'
  REMOVED_OBJECTS                = ' '
IMPORTING
   RETURN_CODE                    = lv_return
  TABLES
  TASK_FILTER                    =
    WORKLIST                       = lt_worklist
  MESSAGE_LINES                  =
  MESSAGE_STRUCT                 =
   if lt_worklist is not initial.
loop at lt_worklist into lw_worklist.
  object-instance = 'X'.
move lw_worklist-wi_id to lv_id.
CALL FUNCTION 'SWP_WORKFLOW_INSTANCE_DELETE'
  EXPORTING
    WF_ID                         = lv_id
    DO_COMMIT                     = 'X'
EXCEPTIONS
  WORKFLOW_DOES_NOT_EXIST       = 1
  OTHERS                        = 2
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDLOOP.
ENDIF.
Second way is to create a fork , and use wait for event step in it with the same event that is triggering the WFL
In the same branch take a process control to end workflow instance.
In the second branch carry out normal processing.
Necessary branch = 1.
So incase the user triggers the event again, a new instance will be created ,
and in the previous instance , the first branch will follow ending the
previous instance and the workitems of other branch will be logically deleted.