Reg: Modification of Master Tables using BDC/BAPI

Question

Dear All,
Thanks for Support shown from all of you.
I want the detailed procedure for Modifying the existing data in the Master Tables using BDC's / BAPI's and Dialog programming.
Please send me one example code.
Please Help me Out.
Thanks In Advance.
Regards,
Adinarayana.B

Answer 1

bapi example
REPORT ZMMR_DELETEPO NO STANDARD PAGE HEADING MESSAGE-ID zisb.
tables : zvtls_sap.
*C-- Types Declarations
TYPES : BEGIN OF tp_flatfile_vtls,
        ebeln(10),
        ebelp type ekpo-ebelp,
        END OF tp_flatfile_vtls.
*=====================================================================
                  INTERNAL TABLES DECLARATION
*=====================================================================
DATA:  t_flatfile_vtls TYPE tp_flatfile_vtls OCCURS 0 WITH HEADER LINE.
data : begin of t_sapdata occurs 0,
       po like zvtls_sap-posap,
       item like zvtls_sap-itemsap,
       end of t_sapdata.
data : begin of t_flatfile_vtls1 occurs 0,
       po(10),
       item like zvtls_sap-itemsap,
       end of t_flatfile_vtls1.
data : begin of t_update occurs 0,
       mandt like zvtls_sap-mandt,
       povtls like zvtls_sap-povtls,
       itemvtls like zvtls_sap-itemvtls,
       posap like zvtls_sap-posap,
       itemsap like zvtls_sap-itemsap,
       aedat like zvtls_sap-aedat,
       paedt like zvtls_sap-paedt,
       loekz like zvtls_sap-loekz,
       end of t_update.
data : begin of t_poheader occurs 0,
       po like zvtls_sap-posap,
       end of t_poheader.
data : begin of t_poitem occurs 0,
       po like zvtls_sap-posap,
       item like zvtls_sap-itemsap,
       end of t_poitem.
DATA : BEGIN OF T_MESSAGE OCCURS 0,
       MSGTY,
       MSGID(2),
       MSGNO(3),
       MSGTX(100),
       PO like zvtls_sap-povtls,
       item like zvtls_sap-itemvtls,
       END OF T_MESSAGE.
DATA : BEGIN OF t_bapi_poheader OCCURS 0.
        INCLUDE STRUCTURE bapimepoheader.
DATA : END OF t_bapi_poheader.
DATA : BEGIN OF t_bapi_poheaderx OCCURS 0.
        INCLUDE STRUCTURE bapimepoheaderx.
DATA : END OF t_bapi_poheaderx.
DATA : BEGIN OF t_bapi_poitem OCCURS 0.
        INCLUDE STRUCTURE bapimepoitem.
DATA : END OF t_bapi_poitem.
DATA : BEGIN OF t_bapi_poitemx OCCURS 0.
        INCLUDE STRUCTURE bapimepoitemx.
DATA : END OF t_bapi_poitemx.
DATA : BEGIN OF t_bapireturn OCCURS 0.
        INCLUDE STRUCTURE bapiret2.
DATA : END OF t_bapireturn.
*=====================================================================
                  V A R I A B L E S
*=====================================================================
DATA: w_success(6)  TYPE n,
      w_bklas like t023-bklas,
      w_curryear(4),
      w_begda like sy-datum,
      w_endda like sy-datum,
      w_begyr(4),
      w_endyr(4),
      w_currmon(2),
      w_assetclass like ankt-anlkl,
      w_price type p,
      w_recordsap type i,
      w_povtls(10),
      w_count type i.
DATA:  w_filepath TYPE rlgrap-filename,
       w_rc TYPE sy-subrc,
       w_sscrfields_ucomm1   TYPE sscrfields-ucomm,
       w_file1 TYPE string,
       w_file2 TYPE FILENAME-FILEINTERN.
*=====================================================================
                  C O N S T A N T S
*=====================================================================
CONSTANTS: c_x              TYPE  c         VALUE 'X',
           c_hyp            TYPE  c         VALUE '-',
           c_err            TYPE  bdc_mart  VALUE 'E'.
CONSTANTS:  c_slash(1)            TYPE c VALUE '/',
            c_hash(1)             TYPE c VALUE '#',
            c_pipe                TYPE c VALUE '|',
            c_1                   TYPE i VALUE 1,
            c_zero                TYPE n VALUE '0',
            c_rg1(3)              TYPE c VALUE 'rg1',
            c_gr3(3)              TYPE c VALUE 'GR3',
            c_gr2(3)              TYPE c VALUE 'GR2',
            c_e(1)                TYPE c VALUE 'E',
            c_filepath(8)         TYPE c VALUE '/interf/',
            c_filetype(10)        TYPE c VALUE 'ASC'.
CONSTANTS : c_bapimepoheaderx   TYPE x030l-tabname
                               VALUE 'bapimepoheaderx',
           c_bapimepoitem      TYPE  x030l-tabname
                               VALUE 'bapimepoitem',
           c_bapimepoaccount   TYPE  x030l-tabname
                               VALUE 'bapimepoaccount',
           c_t_bapi_poheader(15)        TYPE c
                                        VALUE 't_bapi_poheader',
           c_t_bapi_poitem(13)          TYPE c
                                        VALUE 't_bapi_poitem',
           c_t_bapi_poitemx(14)         TYPE c
                                        VALUE 't_bapi_poitemx',
           c_t_bapi_poheaderx(16)       TYPE c
                                        VALUE 't_bapi_poheaderx'.
CLASS cl_abap_char_utilities DEFINITION LOAD.
CONSTANTS:con_tab  TYPE c VALUE cl_abap_char_utilities=>horizontal_tab.
*======================================================================
                       SELECTION SCREEN
*======================================================================
SELECTION-SCREEN BEGIN OF BLOCK inputpath WITH FRAME TITLE text-001.
SELECTION-SCREEN : BEGIN OF BLOCK blk2 WITH FRAME TITLE text-002.
PARAMETERS : p_fore RADIOBUTTON GROUP rg1
                    USER-COMMAND pc,
             p_back RADIOBUTTON GROUP rg1 DEFAULT 'X'.
SELECTION-SCREEN : END OF BLOCK blk2.
SELECTION-SCREEN : BEGIN OF BLOCK blk1 WITH FRAME TITLE text-003.
PARAMETERS :  p_file1 LIKE rlgrap-filename OBLIGATORY MODIF ID gr2.
PARAMETERS :  p_afile1 LIKE rlgrap-filename OBLIGATORY MODIF ID gr3.
SELECTION-SCREEN : END OF BLOCK blk1.
SELECTION-SCREEN END OF BLOCK inputpath.
*C-- Initialization Event
INITIALIZATION.
  CLEAR w_filepath.
  CONCATENATE c_filepath sy-sysid c_slash sy-mandt c_slash INTO
  w_filepath.
  CONDENSE w_filepath NO-GAPS.
  p_file1 = text-008.
  p_afile1 = text-009.
*======================================================================
                       SELECTION SCREEN EVENTS
*======================================================================
*C-- Selection Screen Output
AT SELECTION-SCREEN OUTPUT.
  IF p_fore = c_x.
    w_sscrfields_ucomm1 = space.
  ELSE.
    w_sscrfields_ucomm1 = c_rg1.
  ENDIF.
  LOOP AT SCREEN.
*C--Modify selection screen if presentation
*C--or application server radio button is chosen
    IF w_sscrfields_ucomm1 = space.
      IF screen-group1 = c_gr3.
        screen-active = c_zero.
      ENDIF.
    ELSE.
      IF screen-group1 = c_gr2.
        screen-active = c_zero.
      ENDIF.
    ENDIF.
    if screen-name = 'P_AFILE1'.
      screen-input = 0.
    ENDIF.
    MODIFY SCREEN.
  ENDLOOP.
*C-- Selection Screen VALUE-REQUEST FOR File path
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_file1.
  IF p_fore EQ c_x.
    CALL FUNCTION 'F4_FILENAME'
      EXPORTING
        program_name  = syst-cprog
        dynpro_number = syst-dynnr
      IMPORTING
        file_name     = p_file1.
  ENDIF.
*C-- At Start of the Selection Process
START-OF-SELECTION.
  IF p_fore EQ c_x.
    w_file1 = p_file1.
  ELSE.
    w_file2 = p_afile1.
  ENDIF.
  IF p_fore EQ c_x. " Presentaion Server
*C--Validations for the input files
    PERFORM validate_pre_file USING p_file1.
*C-- Load the contents of the input file into the internal table
    PERFORM upload_file TABLES t_flatfile_vtls
                        USING w_file1
                        CHANGING w_rc.
    IF w_rc <> 0.
      MESSAGE s006 DISPLAY LIKE c_e.
    ENDIF.
  ELSE. " Application Server
*C--Validations for the input files
    PERFORM validate_app_file USING  w_file2.
*C-- Load the contents of the input file into the internal table
    PERFORM upload_file_app TABLES t_flatfile_vtls
                            USING w_file2
                            CHANGING w_rc.
  ENDIF.
  loop at t_flatfile_vtls.
    CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
      EXPORTING
        input  = t_flatfile_vtls-ebeln
      IMPORTING
        output = t_flatfile_vtls1-po.
    CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
      EXPORTING
        input  = t_flatfile_vtls-ebelp
      IMPORTING
        output = t_flatfile_vtls1-item.
    append t_flatfile_vtls1.
    clear t_flatfile_vtls1.
  endloop.
  perform get_podata.
  loop at t_poheader.
    perform move_to_bapi.
    perform call_bapi.
  endloop.
  PERFORM STORE_MESSAGES TABLES T_MESSAGE.
*&      Form  validate_pre_file
    Routine to validate presentation server file path.
     -->fp_name  text
FORM validate_pre_file USING fp_name TYPE rlgrap-filename.
  DATA : l_result,
         l_filename TYPE string.
  l_filename = fp_name.
  CLEAR l_result.
  CALL METHOD cl_gui_frontend_services=>file_exist
    EXPORTING
      file                 = l_filename
    RECEIVING
      result               = l_result
    EXCEPTIONS
      cntl_error           = 1
      error_no_gui         = 2
      wrong_parameter      = 3
      not_supported_by_gui = 4
      OTHERS               = 5.
  IF sy-subrc <> 0.
    MESSAGE s007 DISPLAY LIKE c_e.
    LEAVE LIST-PROCESSING.
  ELSEIF l_result IS INITIAL.
    MESSAGE s008 DISPLAY LIKE c_e.
    LEAVE LIST-PROCESSING.
  ENDIF.
ENDFORM.                    " validate_pre_file_hdr
*&      Form  validate_app_file
      text - Checks if the path entered and filename is correct
FORM validate_app_file USING  fp_file  TYPE FILENAME-FILEINTERN.
  data : l_fname(60).
  CALL FUNCTION 'FILE_GET_NAME'
    EXPORTING
      LOGICAL_FILENAME = FP_FILE
      OPERATING_SYSTEM = SY-OPSYS
    IMPORTING
      FILE_NAME        = L_FNAME
    EXCEPTIONS
      FILE_NOT_FOUND   = 1
      OTHERS           = 2.
  IF SY-SUBRC = '0'.
    OPEN DATASET  L_FNAME FOR INPUT IN TEXT MODE ENCODING DEFAULT.
    IF sy-subrc NE 0.
      MESSAGE s007 DISPLAY LIKE c_e.
    ELSE.
      CLOSE DATASET l_fname.
    ENDIF.
  ENDIF.
ENDFORM.                    " validate_app_file
*&      Form  upload_file
      Routine to upload data from file to tables.
     -->P_fp_flatfile
     -->P_fp_file
     <--P_fp_rc
FORM  upload_file TABLES   fp_flatfile
                  USING    fp_file TYPE string
                  CHANGING fp_rc TYPE sy-subrc.
  IF fp_flatfile[] IS INITIAL.
    CALL FUNCTION 'GUI_UPLOAD'
      EXPORTING
        filename                = fp_file
        filetype                = c_filetype
        has_field_separator     = c_x
      TABLES
        data_tab                = fp_flatfile
      EXCEPTIONS
        file_open_error         = 1
        file_read_error         = 2
        no_batch                = 3
        gui_refuse_filetransfer = 4
        invalid_type            = 5
        no_authority            = 6
        unknown_error           = 7
        bad_data_format         = 8
        header_not_allowed      = 9
        separator_not_allowed   = 10
        header_too_long         = 11
        unknown_dp_error        = 12
        access_denied           = 13
        dp_out_of_memory        = 14
        disk_full               = 15
        dp_timeout              = 16
        OTHERS                  = 17.
    MOVE sy-subrc TO fp_rc.
  ENDIF.
ENDFORM.  " upload_file
*&      Form  upload_file_app
      text
     -->FP_FLATFILEtext
     -->FP_FILE    text
     -->FP_RC      text
FORM  upload_file_app TABLES   fp_flatfile
                      USING    fp_file TYPE FILENAME-FILEINTERN
CHANGING fp_rc TYPE sy-subrc.
  DATA: l_string TYPE tedata-data.
  DATA: wa_data_file TYPE tp_flatfile_vtls,
        l_wllength TYPE i,
        FNAME(60).
  CALL FUNCTION 'FILE_GET_NAME'
    EXPORTING
      LOGICAL_FILENAME = FP_FILE
      OPERATING_SYSTEM = SY-OPSYS
    IMPORTING
      FILE_NAME        = FNAME
    EXCEPTIONS
      FILE_NOT_FOUND   = 1
      OTHERS           = 2.
  IF SY-SUBRC = 0.
    OPEN DATASET  FNAME FOR INPUT IN TEXT MODE ENCODING DEFAULT.
    IF sy-subrc NE 0.
*C-- commented by Bikash
     MESSAGE s107(yaero_ps) DISPLAY LIKE c_e.
      message e008.
    ELSE.
      DO.
        CLEAR: l_string.
        READ DATASET  FNAME INTO l_string LENGTH l_wllength.
        IF sy-subrc NE 0.
          EXIT.
        ELSE.
          SPLIT l_string AT con_tab INTO   wa_data_file-ebeln
                                           wa_data_file-ebelp.
          APPEND wa_data_file TO fp_flatfile.
        ENDIF.
      ENDDO.
      CLOSE DATASET  FNAME.
    ENDIF.
  ENDIF.
ENDFORM.  " upload_file_app
*&      Form  get_podata
      text
form get_podata.
  select *
  into table t_update
  from zvtls_sap
  for all entries in t_flatfile_vtls1
   where itemvtls = t_flatfile_vtls1-item
  and povtls = t_flatfile_vtls1-po.
  sort t_update by posap itemsap.
  loop at t_update.
    at new posap.
      t_poheader-po = t_update-posap.
      append t_poheader.
      clear t_poheader.
    endat.
    t_poitem-po = t_update-posap.
    t_poitem-item = t_update-itemsap.
    append t_poitem.
    clear t_poitem.
    t_update-paedt = sy-datum.
    t_update-loekz = 'X'.
    modify t_update.
  endloop.
  modify zvtls_sap from table t_update.
endform.                    "get_podata
*&      Form  move_to_bapi
      text
form move_to_bapi.
  t_bapi_poheader-po_number = t_poheader-po.
  CLEAR t_bapi_poheaderx.
  PERFORM fill_check_structure USING c_bapimepoheaderx
                                     c_t_bapi_poheader
                                     c_t_bapi_poheaderx
                                     c_x.
  refresh : t_bapi_poitem,t_bapi_poitemx.
  loop at t_poitem where po = t_poheader-po.
    clear t_bapi_poitem.
    t_bapi_poitem-po_item = t_poitem-item.
    t_bapi_poitem-delete_ind = 'X'.
    CLEAR t_bapi_poitemx.
    PERFORM fill_check_structure USING c_bapimepoitem
                                       c_t_bapi_poitem
                                       c_t_bapi_poitemx
                                       c_x.
    t_bapi_poitemx-po_item = t_poitem-item.
    t_bapi_poitemx-po_itemx = c_x.
    APPEND t_bapi_poitem.
    APPEND t_bapi_poitemx.
    clear t_bapi_poitem.
    clear t_bapi_poitemx.
  endloop.
endform.                    "move_to_bapi
*&      Form  call_bapi
      This form Routine is used to commit the data records
FORM call_bapi .
  DATA : l_msgty      TYPE c,
         l_msgid(2)   TYPE c,
         l_msgno(3)   TYPE c,
         l_msgtx(100) TYPE c,
         l_errflag    TYPE c.
  CLEAR: t_bapireturn.
  REFRESH: t_bapireturn.
  CALL FUNCTION 'BAPI_PO_CHANGE'
    EXPORTING
      PURCHASEORDER = T_POHEADER-PO
      POHEADER      = T_BAPI_POHEADER
      POHEADERX     = T_BAPI_POHEADERX
    TABLES
      RETURN        = T_BAPIRETURN
      POITEM        = T_BAPI_POITEM
      POITEMX       = T_BAPI_POITEMX.
  READ TABLE t_bapireturn WITH KEY type = c_err TRANSPORTING NO FIELDS.
  IF sy-subrc NE 0.
    CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
      EXPORTING
        wait = c_x.
  ENDIF.
*C-- Write messages
  WRITE: / 'PO Number', t_poheader-po.
  clear : t_update,w_povtls.
  read table t_update with key posap = t_poheader-po.
  w_povtls = t_update-povtls.
  CLEAR l_errflag.
  LOOP AT t_bapireturn.
    CLEAR: l_msgty, l_msgid, l_msgno, l_msgtx.
    l_msgty = t_bapireturn-type.
    l_msgid = t_bapireturn-id.
    l_msgno = t_bapireturn-number.
    l_msgtx = t_bapireturn-message.
    WRITE: / l_msgty, l_msgid, l_msgno, l_msgtx.
    if l_msgtx cs t_poheader-po.
      w_count = w_count + 1.
      loop at t_update.
        if sy-tabix = w_count.
          t_message-item = t_update-itemvtls.
        endif.
      endloop.
    endif.
    t_message-msgty = l_msgty.
    t_message-msgid = l_msgid.
    t_message-msgno = l_msgno.
    t_message-msgtx = l_msgtx.
    t_message-po = w_povtls.
    append t_message.
    clear t_message.
    IF l_msgty EQ c_err.
      l_errflag = c_x.
    ENDIF.    " l_msgty EQ 'E'
  ENDLOOP.
  ULINE.
  IF l_errflag NE c_x.
    w_success = w_success + 1.
  ENDIF.    " l_errflag NE C_X
endform.                    "call_bapi
*&      Form  fill_check_structure
      This form Routine will check whether the specified structure
      exist/active
FORM fill_check_structure  USING    fp_tabname TYPE any
                                    fp_orgtabname TYPE any
                                    fp_chktabname TYPE any
                                    fp_check TYPE c.
  FIELD-SYMBOLS : <fs_chk>, <fs_org>.
  DATA:    l_char1(61)  TYPE c,
           l_char2(61)  TYPE c.
  DATA:    BEGIN OF tl_nametab OCCURS 60.
          INCLUDE STRUCTURE x031l.
  DATA:    END OF tl_nametab.
  REFRESH tl_nametab.
  CALL FUNCTION 'RFC_GET_NAMETAB'
    EXPORTING
      tabname          = fp_tabname
    TABLES
      nametab          = tl_nametab
    EXCEPTIONS
      table_not_active = 1
      OTHERS           = 2.
  IF sy-subrc <> 0.
    CLEAR tl_nametab.
  ENDIF.
  LOOP AT tl_nametab.
    CLEAR: l_char1, l_char2.
    CONCATENATE fp_chktabname c_hyp tl_nametab-fieldname INTO l_char1.
    ASSIGN (l_char1) TO <fs_chk>.
    CONCATENATE fp_orgtabname c_hyp tl_nametab-fieldname INTO l_char2.
    ASSIGN (l_char2) TO <fs_org>.
    IF <fs_org> IS NOT INITIAL.
      <fs_chk> = fp_check.
    ENDIF.
  ENDLOOP.
ENDFORM.                    " fill_check_structure
*&      Form  STORE_MESSAGES
      text
     -->FP_MESSAGEStext
FORM STORE_MESSAGES TABLES FP_MESSAGES STRUCTURE T_MESSAGE.
  DATA: wl_output_data LIKE t_MESSAGE.
  DATA: l_catstr TYPE string.
  DATA: l_fieldvalue TYPE string.
  DATA: l_index TYPE i VALUE 1.
  DATA: L_FNAME(60).
  FIELD-SYMBOLS <fs>.
  CLEAR l_catstr.
  CALL FUNCTION 'FILE_GET_NAME'
    EXPORTING
      LOGICAL_FILENAME = '/USR/SAP/VTLS/POCHANGE/LOG'
      OPERATING_SYSTEM = SY-OPSYS
    IMPORTING
      FILE_NAME        = L_FNAME
    EXCEPTIONS
      FILE_NOT_FOUND   = 1
      OTHERS           = 2.
  IF SY-SUBRC = '0'.
    IF fp_messages[] IS NOT INITIAL.
      OPEN DATASET L_FNAME FOR OUTPUT IN TEXT MODE ENCODING DEFAULT.
      IF sy-subrc NE 0.
        LEAVE LIST-PROCESSING.
      ELSE.
        LOOP AT fp_messages INTO wl_output_data.
          DO.
           ASSIGN COMPONENT l_index OF STRUCTURE wl_output_data TO <fs>.
            IF sy-subrc <> 0.
              EXIT.
            ENDIF.
            MOVE <fs> TO l_fieldvalue.
            IF l_catstr IS NOT INITIAL.
              CONCATENATE l_catstr l_fieldvalue INTO l_catstr SEPARATED
              BY con_tab.
            ELSE.
              MOVE l_fieldvalue TO l_catstr.
            ENDIF.
            l_index = l_index + c_1.
            CLEAR l_fieldvalue.
            CLEAR <fs>.
          ENDDO.
          l_index = c_1.
          TRANSFER l_catstr TO L_FNAME .
          CLEAR wl_output_data.
          CLEAR l_catstr.
        ENDLOOP.
        CLOSE  DATASET L_FNAME.
      ENDIF.
    ENDIF.
  ENDIF.
ENDFORM.                    "STORE_MESSAGES