FORM delete_routing_ewb USING f_plnty TYPE plko-plnty
                              f_plnnr TYPE plko-plnnr
                              f_plnal TYPE plko-plnal
                              f_matnr TYPE mapl-matnr
                              f_werks TYPE mapl-werks.

  TYPE-POOLS: cpsc, czcl.
  DATA: f_classes_in_workarea LIKE classes_in_workarea.
  DATA: f_tsk_plnty_selection TYPE cpsc_plnty_type.
  DATA: f_tsk_plnnr_selection TYPE cpsc_plnnr_type.
  DATA: f_tsk_plnal_selection TYPE cpsc_plnal_type.
  DATA: f_tsk_selection TYPE cpsc_tsk_sel_type.
  DATA: f_tsk_ident TYPE  cpcl_tsk_ident_type.
  DATA: f_mtk_ident TYPE czcl_mtk_type.

* objects for loading
  f_classes_in_workarea-mtk_inarea = 'X'.
  f_classes_in_workarea-tsk_inarea = 'X'.
  f_classes_in_workarea-seq_inarea = 'X'.
  f_classes_in_workarea-opr_inarea = 'X'.
  f_classes_in_workarea-suo_inarea = 'X'.
  f_classes_in_workarea-prt_inarea = 'X'.
  f_classes_in_workarea-com_inarea = 'X'.
  f_classes_in_workarea-itm_inarea = 'X'.
  f_classes_in_workarea-bom_inarea = 'X'.

* fill selection conditions
  CONCATENATE 'I' 'EQ' f_plnty INTO f_tsk_plnty_selection.
  APPEND f_tsk_plnty_selection TO f_tsk_selection-plnty.

  CONCATENATE 'I' 'EQ' f_plnnr INTO f_tsk_plnnr_selection.
  APPEND f_tsk_plnnr_selection TO f_tsk_selection-plnnr.

  CONCATENATE 'I' 'EQ' f_plnal INTO f_tsk_plnal_selection.
  APPEND f_tsk_plnal_selection TO f_tsk_selection-plnal.

* load objects into EWB
  CALL FUNCTION 'CP_CC_S_LOAD_COMPLEX_BY_TSK'
    EXPORTING
      i_class                        = 'P'
      i_classes_in_workarea          = f_classes_in_workarea
      i_cpsc_tsk_sel                 = f_tsk_selection
      i_date_from                    = sy-datum
      i_date_to                      = sy-datum
    EXCEPTIONS
      workarea_not_found             = 1
      workarea_wrong_type            = 2
      class_in_workarea_inconsistent = 3
      workarea_not_specified         = 4
      opr_not_found                  = 5
      no_selection_criteria          = 6
      invalid_selection_period       = 7
      key_date_required_for_ecm      = 8
      OTHERS                         = 9.

  IF sy-subrc EQ 0.
    "prepare ident for material task allocation
    f_mtk_ident-mandt = sy-mandt.
    f_mtk_ident-plnty = f_plnty.
    f_mtk_ident-plnnr = f_plnnr.
    f_mtk_ident-plnal = f_plnal.
    f_mtk_ident-zkriz = f_plnal.
    f_mtk_ident-matnr = f_matnr.
    f_mtk_ident-werks = f_werks.
*    f_mtk_ident-vbeln = f_vbeln.
*    f_mtk_ident-posnr = f_posnr.
*  f_mtk_ident-matnr_ext = .

    "delete material-task allocation MAPL-LOEKZ
    CALL FUNCTION 'CP_CC_S_DELETE_BY_MTK'
      EXPORTING
*       I_ECN_S                   = I_ECN_S
        i_key_date_s              = sy-datum
        i_mtk_ident               = f_mtk_ident
*     IMPORTING
*       E_TSK_LOCK                = E_TSK_LOCK
*       E_ECM_DATA_ERROR_TYPE     = E_ECM_DATA_ERROR_TYPE
*       E_OPR_LOCK                = E_OPR_LOCK
      EXCEPTIONS
        no_authority              = 1
        no_authority_for_material = 2
        no_valid_allocation       = 3
        no_key_date               = 4
        task_not_locked           = 5
        path_incomplete           = 6
        ecm_data_not_suitable     = 7
        no_authority_for_qm       = 8
        opr_not_locked            = 9
        OTHERS                    = 10.
    IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
    ENDIF.
    "prepare Task ident for deletion
    f_tsk_ident-mandt = sy-mandt.
    f_tsk_ident-plnty = f_plnty.
    f_tsk_ident-plnnr = f_plnnr.
    f_tsk_ident-plnal = f_plnal.

    "delete routing (PLKO-LOEKZ)
    CALL FUNCTION 'CP_CC_S_DELETE_BY_TSK'
      EXPORTING
*       I_ECN_S                 = I_ECN_S
        i_key_date_s            = sy-datum
        i_tsk_ident             = f_tsk_ident
*       I_FLG_ECM_FILTER        = ' '
* IMPORTING
*       E_TSK_LOCK              = E_TSK_LOCK
*       E_ECM_DATA_ERROR_TYPE   = E_ECM_DATA_ERROR_TYPE
      EXCEPTIONS
        no_authority            = 1
        no_valid_task           = 2
        no_key_date             = 3
        task_not_locked         = 4
        path_incomplete         = 5
        ecm_data_not_suitable   = 6
        reference_set_is_in_use = 7
        OTHERS                  = 8.

    IF sy-subrc EQ 0.
      "save changes
      CALL FUNCTION 'CP_CC_S_SAVE'
        EXCEPTIONS
          error_at_save = 1
          OTHERS        = 2.
      IF sy-subrc EQ 0.
        COMMIT WORK AND WAIT.
      ELSE.
        ROLLBACK WORK.
      ENDIF.

    ENDIF.

  ENDIF.

  "dequeue Task
  CALL FUNCTION 'CP_CL_TSK_UNLOCK'
    EXPORTING
*     MODE_TSK_CLASS_LOCK       = 'E'
*     MANDT          = SY-MANDT
      plnty          = 'N'
      plnnr          = f_plnnr
      plnal          = f_plnal
*     X_PLNTY        = ' '
*     X_PLNNR        = ' '
*     X_PLNAL        = ' '
      _synchron      = 'X'
*     _COLLECT       = ' '
* IMPORTING
*     E_NAME         = E_NAME
    EXCEPTIONS
      foreign_lock   = 1
      system_failure = 2
      OTHERS         = 3.
  IF sy-subrc EQ 0.

  ENDIF.

ENDFORM.                    "delete_routing_ewb