How to get data back from an action ?

Hello,
Would it be possible to get data back from an action (out of the question EO_MESSAGE & ET_FAILED_KEY )?
For example we got an order with order positions and we need a "function" to e.g. count all positions. Because of Performance the function should not be processed each time the order is changed, read or a position is added. Instead the function should be processed only if it was called explicitly.
Is it possible to create a kind of action which is actually counting all entries and export the number of them?
How to mark a parameter in is_parameters as exporting?
Is this just done by (naming-) convention?
What is the preferred way to have “methods” with returning/exporting values?
Regards,
Lorenz

Hello Lorenz,
As you have already figured out , the Action API provides you with only the messages and failed keys if any.
Post action execution , you can always execute a retrieve or retrive by association , to get the latest buffer snapshot , which of course would include the changes that you have made in your action.
If you want to ensure that users have explict control on execution of your "fucntion", then of course , you should model it as an action on the BO.
The parameter is_parameters is an IMPORTING parameter. You CANNOT use it to export anything back from the action. For importing ,  you can of course have any structure to use as the is_paramaters , which you model as the action parameter structure which modelling your BO action.
From an external entity the only way to interact with a BO is by consuming the BO services and you are bound by the BOBF standard interfaces. Any and all data you require needs to be modelled as node attributes ( persistent or transient ) and fetched using the RETRIEVE, RETRIEVE_BY_ASSOCIATION or QUERY services.
Regards,
Indranil.

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      IT_VEKP_TMP1[] = IT_VEKP_TMP[].
      LOOP AT IT_VEKP_TMP.
        MOVE IT_VEKP_TMP TO IT_TMP.
        CLEAR IT_TMP-EXIDV.
        COLLECT IT_TMP.
      ENDLOOP.
      CLEAR IT_VEKP_TMP[].
      IT_VEKP_TMP[] =  IT_TMP[] .
    LOOP AT IT_VEKP_TMP.
        L_TABIX = SY-TABIX.
        READ TABLE IT_VEKP_TMP1 WITH KEY INHALT = IT_VEKP_TMP-INHALT
                                    ZZSONUM = IT_VEKP_TMP-ZZSONUM
                                    ZZPROMDT = IT_VEKP_TMP-ZZPROMDT
                                    ZZOCHOLDRC = IT_VEKP_TMP-ZZOCHOLDRC
                                    VEMNG = IT_VEKP_TMP-VEMNG.
        IF SY-SUBRC = 0.
          IT_VEKP_TMP-EXIDV = IT_VEKP_TMP1-EXIDV.
          MODIFY IT_VEKP_TMP INDEX L_TABIX.
        ENDIF.
      ENDLOOP.
      LOOP AT IT_LIPS.
        MOVE-CORRESPONDING IT_LIPS TO IT_FINAL.
        READ TABLE IT_LIKP WITH KEY VBELN = IT_LIPS-VBELN.
        IF SY-SUBRC = 0.
          IT_FINAL-VSTEL = IT_LIKP-VSTEL.
          IT_FINAL-LFDAT = IT_LIKP-LFDAT.
        ENDIF.
        READ TABLE IT_KNA1 WITH KEY KUNNR = IT_LIKP-KUNNR.
        IF SY-SUBRC = 0.
          IT_FINAL-NAME1 = IT_KNA1-NAME1.
        ENDIF.
        READ TABLE IT_VBAK WITH KEY VBELN = IT_LIPS-VGBEL.
        IF SY-SUBRC = 0.
          IT_FINAL-ZZREP_USERID1 = IT_VBAK-ZZREP_USERID1.
        ENDIF.
        READ TABLE IT_SONUM WITH KEY VGBEL = IT_LIPS-VGBEL
                                     VGPOS = IT_LIPS-VGPOS.
        IF SY-SUBRC = 0.
          LOOP AT IT_VEKP_TMP WHERE ZZSONUM = IT_SONUM-ZZSONUM
                                 AND INHALT = IT_LIPS-VBELN.
            IF NOT IT_VEKP_TMP-ZZPROMDT+0(4) = '0000'.
              IT_FINAL-ZZPROMDT = IT_VEKP_TMP-ZZPROMDT.
            ELSE.
              IT_FINAL-ZZPROMDT = '00000000'.
            ENDIF.
            IT_FINAL-ZZOCHOLDRC = IT_VEKP_TMP-ZZOCHOLDRC.
            IT_FINAL-VEMNG = IT_VEKP_TMP-VEMNG.
            IT_FINAL-ZZSONUM = IT_VEKP_TMP-ZZSONUM.
            IT_FINAL-EXIDV = IT_VEKP_TMP-EXIDV.
            APPEND IT_FINAL.
          ENDLOOP.
          IF SY-SUBRC <> 0.
            IT_FINAL-ZZPROMDT = '00000000'.
            IT_FINAL-ZZOCHOLDRC = ' '.
            IT_FINAL-VEMNG = '  '.
            IT_FINAL-FLAG = 'X'.
            APPEND IT_FINAL.
            CLEAR IT_FINAL.
          ENDIF.
        ENDIF.
      ENDLOOP.
      DELETE IT_FINAL WHERE ZZOCHOLDRC NOT IN S_OCHRC[].
      DELETE IT_FINAL WHERE ZZREP_USERID1 NOT IN S_USERID[].
      DELETE IT_FINAL WHERE WERKS NOT IN S_WERKS[].
      IF NOT IT_ZSDOCHOLD[] IS INITIAL.
        LOOP AT IT_FINAL.
          READ TABLE IT_ZSDOCHOLD WITH KEY ZZOCHOLDRC = IT_FINAL-ZZOCHOLDRC.
          IF SY-SUBRC = 0.
            IT_FINAL-ZZRCDESC = IT_ZSDOCHOLD-ZZRCDESC.
            MODIFY IT_FINAL.
          ENDIF.
        ENDLOOP.
      ENDIF.
      IT_FINAL_TMP[] = IT_FINAL[].
      CLEAR IT_FINAL.
    ENDFORM.                    " populate_final_table
    *&      Form  get_vekp_data
    *       Populating Promise Date and Order Control Hold Reason Code
    FORM GET_VEKP_DATA .
      CLEAR: IT_SONUM,IT_VEKP,IT_VEKP_TMP.
      REFRESH: IT_SONUM,IT_VEKP,IT_VEKP_TMP.
      LOOP AT IT_LIPS.
        MOVE-CORRESPONDING IT_LIPS TO IT_SONUM.
        CONCATENATE IT_LIPS-VGBEL IT_LIPS-VGPOS INTO IT_SONUM-ZZSONUM.
        APPEND IT_SONUM.
        CLEAR IT_SONUM.
      ENDLOOP.
      IF NOT IT_SONUM[] IS INITIAL.
        SELECT EXIDV
               INHALT
               ZZSONUM
               ZZPROMDT
               ZZOCHOLDRC
              INTO TABLE IT_VEKP
              FROM VEKP
              FOR ALL ENTRIES IN IT_SONUM[]
              WHERE ZZSONUM = IT_SONUM-ZZSONUM
                 AND ZZOCHOLDRC IN S_OCHRC.
        SELECT  EXIDV INHALT VEMNG
                ZZSONUM
                INTO TABLE IT_QUANT
                FROM ZVEKPO
                FOR ALL ENTRIES IN IT_SONUM[]
                WHERE ZZSONUM = IT_SONUM-ZZSONUM.
        IF SY-SUBRC = 0.
          LOOP AT IT_VEKP.
            READ TABLE IT_QUANT WITH KEY EXIDV = IT_VEKP-EXIDV
                                         INHALT = IT_VEKP-INHALT
                                         ZZSONUM = IT_VEKP-ZZSONUM.
            IF SY-SUBRC = 0.
              IT_VEKP-VEMNG = IT_QUANT-VEMNG.
              MODIFY IT_VEKP.
            ENDIF.
          ENDLOOP.
          IT_VEKP_TMP[] = IT_VEKP[].
          SELECT ZZOCHOLDRC
                 ZZRCDESC
                 INTO TABLE IT_ZSDOCHOLD
                 FROM ZSD_OC_HOLD
                 FOR ALL ENTRIES IN IT_VEKP[]
                 WHERE ZZOCHOLDRC = IT_VEKP-ZZOCHOLDRC.
        ENDIF.
      ENDIF.
    ENDFORM.                    " get_vekp_data
    *&      Form  SELECT_OCHOLDRC
    *       Selecting the Reason Codes and Descriptions
    FORM SELECT_OCHOLDRC .
      SELECT *
             FROM ZSD_OC_HOLD
             INTO TABLE IT_OCRC.
    ENDFORM.                    " select_OCHOLDRC
    *&      Form  CREATE_AND_INIT_ALV
    *       Creating the ALV grid and initializing
    FORM CREATE_AND_INIT_ALV .
      DATA: LT_EXCLUDE TYPE UI_FUNCTIONS.
      CREATE OBJECT G_CUSTOM_CONTAINER
             EXPORTING CONTAINER_NAME = G_CONTAINER1.
      CREATE OBJECT G_GRID
             EXPORTING I_PARENT = G_CUSTOM_CONTAINER.
    * Set a titlebar for the grid control
      GS_LAYOUT-STYLEFNAME = 'HANDLE_STYLE'.
      GS_LAYOUT-GRID_TITLE = TEXT-003.
      GS_LAYOUT-CWIDTH_OPT = 'X'.
      GS_LAYOUT-NO_ROWMARK = 'X'.
      GS_LAYOUT-ZEBRA = SPACE."'X'.
      GS_LAYOUT-INFO_FNAME  = SPACE.
      GS_LAYOUT-CTAB_FNAME  = SPACE.
      CALL METHOD G_GRID->REGISTER_EDIT_EVENT
        EXPORTING
          I_EVENT_ID = CL_GUI_ALV_GRID=>MC_EVT_ENTER.
      CREATE OBJECT G_HANDLER.
      SET HANDLER G_HANDLER->HANDLE_USER_COMMAND FOR G_GRID.
      SET HANDLER G_HANDLER->HANDLE_DOUBLE_CLICK FOR G_GRID.
      SET HANDLER G_HANDLER->HANDLE_HOTSPOT_CLICK FOR G_GRID.
      SET HANDLER G_HANDLER->HANDLE_DATA_CHANGED FOR G_GRID.
      SET HANDLER G_HANDLER->HANDLE_TOOLBAR FOR G_GRID.
    * setting focus for created grid control
      CALL METHOD CL_GUI_CONTROL=>SET_FOCUS
        EXPORTING
          CONTROL = G_GRID.
    * Build fieldcat and set editable for date and reason code
    * edit enabled. Assign a handle for the dropdown listbox.
      PERFORM BUILD_FIELDCAT.
    * Optionally restrict generic functions to 'change only'.
    *   (The user shall not be able to add new lines).
      PERFORM EXCLUDE_TB_FUNCTIONS CHANGING LT_EXCLUDE.
      PERFORM DISABLE_EDIT_FIELDS.
    **Vaiant to save the layout
      LS_VARI-REPORT      = SY-REPID.
      LS_VARI-HANDLE      = SPACE.
      LS_VARI-LOG_GROUP   = SPACE.
      LS_VARI-USERNAME    = SPACE.
      LS_VARI-VARIANT     = SPACE.
      LS_VARI-TEXT        = SPACE.
      LS_VARI-DEPENDVARS  = SPACE.
    * Define a drop down table.
      PERFORM SET_DRDN_TABLE.
    **Calling the Method for ALV output
      CALL METHOD G_GRID->SET_TABLE_FOR_FIRST_DISPLAY
        EXPORTING
          IT_TOOLBAR_EXCLUDING = LT_EXCLUDE
          IS_VARIANT           = LS_VARI
          IS_LAYOUT            = GS_LAYOUT
          I_SAVE               = 'A'
        CHANGING
          IT_FIELDCATALOG      = IT_FIELDCAT
          IT_OUTTAB            = IT_FINAL[].
    * Set editable cells to ready for input initially
      CALL METHOD G_GRID->SET_READY_FOR_INPUT
        EXPORTING
          I_READY_FOR_INPUT = 1.
      CALL METHOD G_GRID->SET_TOOLBAR_INTERACTIVE.
    ENDFORM.                               "CREATE_AND_INIT_ALV
    *&      Form  EXCLUDE_TB_FUNCTIONS
    *       Excluding the ALV functions
    FORM EXCLUDE_TB_FUNCTIONS CHANGING PT_EXCLUDE TYPE UI_FUNCTIONS.
    * Only allow to change data not to create new entries (exclude
    * generic functions).
      DATA LS_EXCLUDE TYPE UI_FUNC.
      LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_COPY_ROW.
      APPEND LS_EXCLUDE TO PT_EXCLUDE.
      LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_DELETE_ROW.
      APPEND LS_EXCLUDE TO PT_EXCLUDE.
      LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_APPEND_ROW.
      APPEND LS_EXCLUDE TO PT_EXCLUDE.
      LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_INSERT_ROW.
      APPEND LS_EXCLUDE TO PT_EXCLUDE.
      LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_MOVE_ROW.
      APPEND LS_EXCLUDE TO PT_EXCLUDE.
      LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_COPY.
      APPEND LS_EXCLUDE TO PT_EXCLUDE.
      LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_CUT.
      APPEND LS_EXCLUDE TO PT_EXCLUDE.
      LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_PASTE.
      APPEND LS_EXCLUDE TO PT_EXCLUDE.
      LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_PASTE_NEW_ROW.
      APPEND LS_EXCLUDE TO PT_EXCLUDE.
      LS_EXCLUDE = CL_GUI_ALV_GRID=>MC_FC_LOC_UNDO.
      APPEND LS_EXCLUDE TO PT_EXCLUDE.
    ENDFORM.                               " EXCLUDE_TB_FUNCTIONS
    *&      Form  build_fieldcat
    *       Fieldcatalog
    FORM BUILD_FIELDCAT .
      DATA:L_POS TYPE I VALUE 1.
      CLEAR: L_POS.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Shpt'(012).
      X_FIELDCAT-FIELDNAME = 'VSTEL'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '4'.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Con Path'(013).
      X_FIELDCAT-FIELDNAME = 'ZZCONPATH'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '8'.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Plant'(014).
      X_FIELDCAT-FIELDNAME = 'WERKS'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '5'.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Del Date'(015).
      X_FIELDCAT-FIELDNAME = 'LFDAT'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '10'.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-COLTEXT = 'Prom Date'(016).
    *  X_FIELDCAT-SCRTEXT_M = 'Prom Date'(016).
      X_FIELDCAT-FIELDNAME = 'ZZPROMDT'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '10'.
      X_FIELDCAT-EMPHASIZE = ' '.
      X_FIELDCAT-EDIT = 'X'.
    *  X_FIELDCAT-HOTSPOT = 'X'.
      X_FIELDCAT-DATATYPE = 'DATS'.
      X_FIELDCAT-INTTYPE = 'D'.
      X_FIELDCAT-REF_TABLE = 'VEKP'.
      X_FIELDCAT-REF_FIELD = 'ZZPROMDT'.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR  X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Ship-To-Name'(017).
      X_FIELDCAT-FIELDNAME = 'NAME1'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '40'.
      X_FIELDCAT-EMPHASIZE = ' '.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'SalesOrder#'(018).
      X_FIELDCAT-FIELDNAME = 'VGBEL'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '10'.
      X_FIELDCAT-EMPHASIZE = ' '.
      X_FIELDCAT-HOTSPOT = 'X'.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Item'(019).
      X_FIELDCAT-FIELDNAME = 'VGPOS'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-EMPHASIZE = ' '.
      X_FIELDCAT-OUTPUTLEN = '5'.
      X_FIELDCAT-HOTSPOT = ' '.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Material'(020).
      X_FIELDCAT-FIELDNAME = 'MATNR'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '18'.
      X_FIELDCAT-EMPHASIZE = ' '.
      X_FIELDCAT-HOTSPOT = ' '.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Materal Desc'(021).
      X_FIELDCAT-FIELDNAME = 'ARKTX'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '40'.
      X_FIELDCAT-EMPHASIZE = ' '.
      X_FIELDCAT-HOTSPOT = ' '.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'D.O.Item Qty'(022).
      X_FIELDCAT-FIELDNAME = 'VEMNG'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '13'.
      X_FIELDCAT-EMPHASIZE = ' '.
      X_FIELDCAT-HOTSPOT = ' '.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'RC'(023).
      X_FIELDCAT-FIELDNAME = 'ZZOCHOLDRC'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '3'.
      X_FIELDCAT-EDIT = 'X'.
      X_FIELDCAT-DRDN_HNDL = '1'.
      X_FIELDCAT-DRDN_ALIAS = 'X'.
    *  X_FIELDCAT-DRDN_FIELD = 'DROP_DOWN_HANDLE'.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
    *  X_FIELDCAT-SCRTEXT_M = 'OC HOLD RC Desc'.
    *  X_FIELDCAT-FIELDNAME = 'ZZRCDESC'.
    *  X_FIELDCAT-TABNAME = 'IT_FINAL'.
    *  X_FIELDCAT-COL_POS    = L_POS.
    *  X_FIELDCAT-OUTPUTLEN = '20'.
    *  X_FIELDCAT-EDIT = 'X'.
    *  X_FIELDCAT-HOTSPOT = ' '.
    *  APPEND X_FIELDCAT TO IT_FIELDCAT.
    *  CLEAR X_FIELDCAT.
    *  L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Delivery'(024).
      X_FIELDCAT-FIELDNAME = 'VBELN'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '10'.
      X_FIELDCAT-EMPHASIZE = ' '.
      X_FIELDCAT-HOTSPOT = 'X'.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Item'(025).
      X_FIELDCAT-FIELDNAME = 'POSNR'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '5'.
      X_FIELDCAT-EMPHASIZE = ' '.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
      L_POS = L_POS + 1.
      X_FIELDCAT-SCRTEXT_M = 'Rep User Id'(026).
      X_FIELDCAT-FIELDNAME = 'ZZREP_USERID1'.
      X_FIELDCAT-TABNAME = 'IT_FINAL'.
      X_FIELDCAT-COL_POS    = L_POS.
      X_FIELDCAT-OUTPUTLEN = '11'.
      X_FIELDCAT-EMPHASIZE = ' '.
      X_FIELDCAT-HOTSPOT = ' '.
      APPEND X_FIELDCAT TO IT_FIELDCAT.
      CLEAR X_FIELDCAT.
    ENDFORM.                    " build_fieldcat
    *&      Form  set_drdn_table
    *       Setting the Drop down for the Reason code
    FORM SET_DRDN_TABLE.
      DATA: X_OCRC LIKE LINE OF IT_OCRC.
      DATA:LT_DRAL TYPE LVC_T_DRAL,
            LS_DRAL TYPE LVC_S_DRAL,
            L_DRDN(25) TYPE C.
      LOOP AT IT_OCRC INTO X_OCRC.
      CONCATENATE X_OCRC-ZZOCHOLDRC ' ' ' ' ' ' X_OCRC-ZZRCDESC INTO L_DRDN
    SEPARATED BY SPACE.
    * First listbox (handle '1').
        LS_DRAL-HANDLE = '1'.
        LS_DRAL-VALUE =  L_DRDN.
        LS_DRAL-INT_VALUE = X_OCRC-ZZOCHOLDRC.
        APPEND LS_DRAL TO LT_DRAL.
      ENDLOOP.
    **Setting the Drop down table for Reason Code
      CALL METHOD G_GRID->SET_DROP_DOWN_TABLE
        EXPORTING
          IT_DROP_DOWN_ALIAS = LT_DRAL.
    ENDFORM.                               " set_drdn_table
    *&      Form  handle_hotspot_click
    *      Handling the Hotspot
    FORM HANDLE_HOTSPOT_CLICK USING I_ROW_ID TYPE LVC_S_ROW
                                    I_COLUMN_ID TYPE LVC_S_COL
                                    IS_ROW_NO TYPE LVC_S_ROID.
      READ TABLE IT_FINAL INDEX I_ROW_ID  .
      IF SY-SUBRC = 0.
        IF I_COLUMN_ID-FIELDNAME = 'VGBEL'.
          PERFORM FORM_REFRESH.
          SET PARAMETER ID 'AUN' FIELD IT_FINAL-VGBEL.
          CALL TRANSACTION 'VA03' AND SKIP FIRST SCREEN.
        ENDIF.
    **if user clicks on Delivery
        IF I_COLUMN_ID-FIELDNAME = 'VBELN'.
          PERFORM FORM_REFRESH.
          SET PARAMETER ID 'VL' FIELD IT_FINAL-VBELN.
          CALL TRANSACTION 'VL02N' AND SKIP FIRST SCREEN.
        ENDIF.
      ENDIF.
    ENDFORM .                    "handle_hotspot_click
    *&      Form  FORM_REFRESH for first list
    FORM FORM_REFRESH .
      CALL METHOD G_GRID->REFRESH_TABLE_DISPLAY
        EXCEPTIONS
          FINISHED = 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.
    ENDFORM .                    "FORM_REFRESH
    *&      Form  event_ucomm
    *       Handling User Commands
    FORM EVENT_UCOMM  USING    E_UCOMM TYPE SY-UCOMM.
      SORT IT_FINAL.
      SORT IT_FINAL_TMP.
      CASE E_UCOMM.
        WHEN 'BACK'.
          CALL METHOD G_GRID->CHECK_CHANGED_DATA
            IMPORTING
              E_VALID = L_VALID.
          CALL METHOD CL_GUI_CFW=>FLUSH.
          PERFORM BACK_OPERATION.
        WHEN 'SAVE'.
          CALL METHOD G_GRID->CHECK_CHANGED_DATA
            IMPORTING
              E_VALID = L_VALID.
          CALL METHOD CL_GUI_CFW=>FLUSH.
          PERFORM SAVE_OPERATION.
      ENDCASE.
    ENDFORM.                    " event_ucomm
    *&      Form  back_operation
    *       When User do Back operation
    FORM BACK_OPERATION .
    **When User Press back Button
    *    WHEN 'BACK'.
      DATA: L_ANS TYPE C,
            L_TABIX TYPE SY-TABIX,
            L_SONUM TYPE VEKP-ZZSONUM,
            X_OCRC LIKE LINE OF IT_OCRC.
    **Checking for the Data Change
      IF IT_FINAL_TMP[] <> IT_FINAL[].
        PERFORM CONFIRM_BEFORE_LEAVE CHANGING L_ANS.
        IF L_ANS = '1' .
          LOOP AT IT_FINAL.
            L_TABIX = SY-TABIX.
            READ TABLE IT_FINAL_TMP INDEX L_TABIX.
            IF SY-SUBRC  = 0.
              IF IT_FINAL <> IT_FINAL_TMP.
    *-Validate Date Field.
                PERFORM VALIDATE_AND_CONVERT_DATE.
    **Modifying the VEKP table based on changes
                IF NOT IT_FINAL_TMP-EXIDV IS INITIAL.
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                               AND ZZPROMDT = IT_FINAL_TMP-ZZPROMDT
                               AND ZZOCHOLDRC = IT_FINAL_TMP-ZZOCHOLDRC.
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                 ICON_BUTTON_1         = 'ICON_OKAY'
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                 START_ROW             = 6
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                 OTHERS                = 2.
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          INPUT                     = IT_FINAL-ZZPROMDT
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      REFRESH IT_VEKP1.
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