Need logic for po item

Question

Hi iam trying to get the po line item latest changedby name to display in my report
can you give me the logic to get the changed by name for theline item.
i have written the code but if i change the line item 20 then in the out put the changedby name is being displayed for line itema 10 ,20, 30 i e for all line items .but i want the changeby name to be displayed only for the particular line item which was changed.
*& Report  ZMR_PO_AUDIT_RPT                                            *
*&  Purpose - Report on PO release details for auditing.               *
Program ID  :  ZMR_PO_AUDIT_RPT                                     *
Title       :  Purchase Release Audit Report                        *
Create Date :  19.03.2007                                           *
Author      :  Marina Gosman (JH IT services)                       *
Tech. Spec  :                                                       *
Change Req #:                                                       *
Changed by  |  Description of change                    |  Date     *
MarinaG     | Change the report Heading to Purchase     |           *
             | Order Action Audit Report R3DK912376      |23.03.07   *
MarinaG     | Fix a select bug. R3DK912384              |23.03.07   *
MarinaG     | Change report heading by removing fields  |27.03.07   *
             | R3DK912404                                |           *
MarinaG     | Add exception checkbox which will only    |3.04.07    *
             | show the same GR, Released and Created    |           *
             | username R3DK912444.                      |           *
MarinaG     | Add GR Value and Vendor Name FP#1919      |28.08.07   *
             | R3DK912809                                |           *
MarinaG     | Add line item no., display line items for |11.10.07   *
             | GR period and GR date FP#1919 R3DK912960  |           *
REPORT ZSAMPLE3 NO STANDARD PAGE HEADING LINE-SIZE 200
MESSAGE-ID zv.
Database Tables
TABLES: ekko,t16fd,cdhdr,cdpos,t000,lfa1,t024,ekbe,mkpf.
TYPE-POOLS slis.
Type Declaration
*TYPE-POOLS: kkblo.
Structures
DATA:BEGIN OF st_output,
     ebeln  LIKE ekko-ebeln,
     batxt  LIKE t161t-batxt,
     banfn  LIKE eban-banfn,
     bukrs  LIKE ekko-bukrs,
     frggr  LIKE ekko-frggr,
     frgsx  LIKE ekko-frgsx,
     frgct  LIKE t16fd-frgct,
     udate  LIKE cdhdr-udate,
     utime  like cdhdr-utime,
     username LIKE cdhdr-username,
     lifnr  LIKE ekko-lifnr,        " vendor
     name1  LIKE lfa1-name1,        " vendor name
     ebelp  LIKE ekpo-ebelp,        " line no.
     afnam  LIKE ekpo-afnam,        " requisitioner
     netwr  LIKE ekpo-netwr,
     ekgrp  LIKE ekko-ekgrp,
     eknam  LIKE t024-eknam,
     ernam  LIKE ekko-ernam,
     grnam  LIKE ekbe-ernam,
     bedat  LIKE ekko-bedat,
     budat  LIKE ekbe-budat,
     belnr  LIKE ekbe-belnr,                                "R3DK912960
     dmbtr  LIKE ekbe-dmbtr,                                "R3DK912960
Indira
     cdate  LIKE cdhdr-username,
Indira
END OF st_output.
Indra
DATA: l_ponum LIKE ekko-ebeln,
      l_poline LIKE ekpo-ebelp.
DATA: BEGIN OF t_EKbe OCCURS 0,
      ebeln LIKE EKbe-ebeln,
      belnr LIKE EKbe-Belnr,
      budat LIKE EKbe-Budat,
      cputm LIKE EKbe-cputm,
      END OF T_EKbe.
DATA: BEGIN OF T_mkpf OCCURS 0,
       mblnr LIKE mkpf-mblnr,
       usnam LIKE mkpf-usnam,
       END OF T_mkpf.
Internal Tables
DATA: t_cdhdr LIKE cdhdr OCCURS 0 WITH HEADER LINE,
      t_cdhdr1 LIKE cdhdr OCCURS 0 WITH HEADER LINE,
      po_ekko LIKE ekko OCCURS 0 WITH HEADER LINE.
Indra
DATA: t_cdpos LIKE cdpos OCCURS 0 WITH HEADER LINE.
indra
DATA: BEGIN OF tbl_output OCCURS 0.
        INCLUDE STRUCTURE st_output.
DATA: END OF tbl_output.
DATA: BEGIN OF tbl_ekpo OCCURS 0.
        INCLUDE STRUCTURE ekpo.
DATA: END OF tbl_ekpo.
DATA: BEGIN OF tbl_ekbe OCCURS 0.
        INCLUDE STRUCTURE ekbe.
DATA: END OF tbl_ekbe.
DATA:  BEGIN OF t_ekko OCCURS 0,
          ebeln TYPE ebeln,
          ebelp TYPE ebelp,                                 "R3DK912960
          belnr TYPE MBLNR,                                 "R3DK912960
          bukrs TYPE bukrs,
          bsart TYPE bsart,
          bedat TYPE bedat,
          budat TYPE budat,
          ernam TYPE ernam,
          grnam TYPE ernam,
          dmbtr TYPE dmbtr,                                 "R3DK912960
       END OF t_ekko.
DATA: c_tcode(25) TYPE c.
DATA: st_fieldcat    TYPE slis_fieldcat_alv.
DATA: tbl_fieldcat   TYPE slis_t_fieldcat_alv.
DATA: st_event       TYPE slis_alv_event.
DATA: tbl_events     TYPE slis_t_event.
DATA: fieldname(30)  TYPE c.
DATA: st_layout      TYPE slis_layout_alv.
DATA: g_status       TYPE slis_formname VALUE 'STANDARD01'.
DATA: g_user_command TYPE slis_formname VALUE 'USER_COMMAND'.
DATA: st_status      TYPE slis_status.
DATA: tbl_status     TYPE slis_status OCCURS 0 WITH HEADER LINE.
DATA: f_ebeln        LIKE ekko-ebeln.
DATA: cursorfield    LIKE ekko-ebeln.
DATA: ws_ebeln       LIKE ekko-ebeln,
      ws_netwr       LIKE ekpo-netwr,
      ws_ernam       LIKE ekbe-ernam,
      rs_selfield    TYPE slis_selfield,
      ws_dmbtr       LIKE ekbe-dmbtr.                       "R3DK912809
RANGES: r_kunnr FOR vbak-kunnr OCCURS 0.
Selection Screen
SELECTION-SCREEN BEGIN OF BLOCK title WITH FRAME TITLE text-001.
SELECT-OPTIONS: s_bukrs  FOR ekko-bukrs OBLIGATORY,
                s_ekorg  FOR ekko-ekorg OBLIGATORY,
                s_ebeln  FOR ekko-ebeln,
                s_groups FOR ekko-ekgrp,
                s_lifnr  FOR ekko-lifnr,
                s_bedat  FOR ekko-bedat,
                s_budat  FOR ekbe-budat,
                s_bsart  FOR ekko-bsart.
SELECTION-SCREEN END OF BLOCK title .
SELECTION-SCREEN BEGIN OF BLOCK title2 WITH FRAME TITLE text-001.
PARAMETERS: p_gr AS CHECKBOX DEFAULT 'X',
            p_excep AS CHECKBOX.
SELECTION-SCREEN END OF BLOCK title2 .
*& AT SELECTION SCREEN
AT SELECTION-SCREEN.
  IF NOT p_gr IS INITIAL.
    IF s_budat IS INITIAL.
      MESSAGE s000 WITH 'Please enter Goods Receipt Date.'.
      STOP.
    ENDIF.
  ELSE.
    IF s_bedat IS INITIAL.
      MESSAGE s000 WITH 'Please enter Purch Doc Date.'.
      STOP.
    ENDIF.
  ENDIF.
                   START-OF-SELECTION.
START-OF-SELECTION.
  PERFORM select_data.         " Select data
  PERFORM sort_table.
  PERFORM get_events.          " Include header in display
  PERFORM get_eventstatus.     " Set the GUI status
  PERFORM get_layout.          " Define ALV Layout
  PERFORM get_fieldcat.        " Fill report fields
  PERFORM create_report.       " Write ALV format
AT LINE-SELECTION.
  PERFORM user_command USING sy-ucomm
                             rs_selfield.
      FORM user_command                                             *
-->  R_UCOMM                                                       *
-->  RS_SELFIELD                                                   *
FORM user_command USING r_ucomm LIKE sy-ucomm
                  rs_selfield TYPE slis_selfield.
  DATA: l_ta TYPE sy-tcode VALUE 'SLIS_DUMMY'.
  CLEAR: f_ebeln.
  CASE r_ucomm.
    WHEN 'CF1'.
      READ TABLE tbl_output INDEX rs_selfield-tabindex.
      IF sy-subrc = 0.
        f_ebeln = tbl_output-ebeln.
      ENDIF.
      SET PARAMETER ID 'BES' FIELD f_ebeln.
      CALL TRANSACTION 'ME23N' AND SKIP FIRST SCREEN.
Begin of R3DK912404
    WHEN 'EXIT' OR 'CANC'.
      LEAVE PROGRAM.
End of R3DK912404
    WHEN 'OTHERS'.
  ENDCASE.
ENDFORM.                    "user_command
      FORM STANDARD_02                                              *
-->  EXTAB                                                         *
FORM standard_01 USING  extab TYPE slis_t_extab.
  SET PF-STATUS 'STANDARD01' EXCLUDING extab .
ENDFORM.                    "standard_01
*&      Form  get_events
      setup report headings
-->  p1        text
<--  p2        text
FORM get_events.
  CLEAR st_event.
  st_event-name = 'TOP_OF_PAGE'.
  st_event-form = 'PROCESS_TOP_OF_PAGE'.
  APPEND st_event TO tbl_events.
ENDFORM.                    " get_events
      FORM get_eventstatus                                          *
FORM get_eventstatus.
  CLEAR st_status.
  st_status-callback_pf_status_set = 'STANDARD_01'.
  APPEND st_status TO tbl_status.
ENDFORM.                    " get_eventstatus
*&      Form  get_layout
      text
-->  p1        text
<--  p2        text
FORM get_layout.
  CLEAR st_layout.
  st_layout-zebra = 'X'.
ENDFORM.                    " get_layout
*&      Form  get_fieldcat
      text
-->  p1        text
<--  p2        text
FORM get_fieldcat.
  PERFORM write_fieldcat USING 'EBELN' 'TBL_OUTPUT' 'EKKO' 'X' 1 ' '.
  PERFORM write_fieldcat USING 'BUKRS' 'TBL_OUTPUT' 'EKKO' 'X' 2 ' '.
Begin of R3DK912960
  PERFORM write_fieldcat USING 'EBELP' 'TBL_OUTPUT' 'EKPO' 'X' 3 ' '.
End of R3DK912960
  PERFORM write_fieldcat USING 'UDATE' 'TBL_OUTPUT' ' ' ' ' 4
  'Doc. Date'.
  PERFORM write_fieldcat USING 'UTIME' 'TBL_OUTPUT' ' ' ' ' 13
  'Doc. Time'.
Begin of R3DK912960
  PERFORM write_fieldcat USING 'BUDAT' 'TBL_OUTPUT' ' ' ' ' 5
  'GR Date'.
End of R3DK912960
  PERFORM write_fieldcat USING 'ERNAM' 'TBL_OUTPUT' ' ' ' ' 6
'Created By'.
  PERFORM write_fieldcat USING 'USERNAME' 'TBL_OUTPUT' ' ' ' ' 7
'Released By'.
  PERFORM write_fieldcat USING 'GRNAM' 'TBL_OUTPUT' ' ' ' ' 8
'Goods Receipted By'.
  PERFORM write_fieldcat USING 'CDATE' 'TBL_OUTPUT' ' ' ' ' 9
  'Changed By'.
  PERFORM write_fieldcat USING 'NETWR' 'TBL_OUTPUT' ' ' ' ' 10
'Total Value'.
  PERFORM write_fieldcat USING 'EKGRP' 'TBL_OUTPUT' 'EKKO' ' ' 11 ' '.
Begin of R3DK912809
  PERFORM write_fieldcat USING 'DMBTR' 'TBL_OUTPUT' ' ' ' ' 12
'GR Value '.
  PERFORM write_fieldcat USING 'NAME1' 'TBL_OUTPUT' ' ' ' ' 13
'Vendor Name'.
End of R3DK912809
ENDFORM.                    " get_fieldcat
      FORM process_top_of_page                                      *
FORM process_top_of_page.
  SKIP.
  ULINE.
  FORMAT COLOR COL_HEADING INTENSIFIED OFF .
Begin of R3DK912376
WRITE:/ 'Report Name     :  PO Release Audit Report',
  WRITE:/ 'Report Name     :  Purchase Order Actions Report',
End of R3DK912376
       / 'Run Date        : ', sy-datum,
       / 'Run Time        : ', sy-uzeit,
Begin of R3DK912404
     / 'Document Type   : ', c_tcode,
End of R3DK912404
       / 'Company code    : ', s_bukrs-low.
  IF NOT s_bukrs-high IS INITIAL.
    WRITE: 'To', s_bukrs-high.
  ENDIF.
  WRITE:/ 'Purch Org       : ', s_ekorg-low.
  IF NOT s_ekorg-high IS INITIAL.
    WRITE: 'To', s_ekorg-high.
  ENDIF.
Begin of R3DK912404
WRITE:/ 'Purchase Order  : ', s_ebeln-low.
IF NOT s_ebeln-high IS INITIAL.
   WRITE: 'To', s_ebeln-high.
ENDIF.
WRITE:/ 'Purchasing Grp  : ', s_groups-low.
IF NOT s_groups-high IS INITIAL.
   WRITE: 'To', s_groups-high.
ENDIF.
WRITE:/ 'Vendor          : ', s_lifnr-low.
IF NOT s_lifnr-high IS INITIAL.
   WRITE: 'To', s_lifnr-high.
ENDIF.
  WRITE:/ 'Goods Receipt Date:', s_budat-low.
  IF NOT s_budat-high IS INITIAL.
    WRITE: 'To', s_budat-high.
  ENDIF.
End of R3DK912404
  WRITE:/ 'Purch Doc Date  : ', s_bedat-low.
  IF NOT s_bedat-high IS INITIAL.
    WRITE: 'To', s_bedat-high.
  ENDIF.
Begin of R3DK912404
WRITE:/ 'Purch Doc Type  : ', s_bsart-low.
IF NOT s_bsart-high IS INITIAL.
   WRITE: 'To', s_bsart-high.
ENDIF.
End of R3DK912404
  ULINE.
  FORMAT COLOR COL_HEADING INTENSIFIED OFF.
ENDFORM.                    " process_top_of_page
*&      Form  create_report
      text
-->  p1        text
<--  p2        text
FORM create_report.
  SORT tbl_output BY ebeln ebelp.
  CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
    EXPORTING
      it_events                = tbl_events
      i_interface_check        = ' '
      i_callback_program       = 'ZSAMPLE3'
      i_callback_pf_status_set = g_status
      i_callback_user_command  = g_user_command
      is_layout                = st_layout
      it_fieldcat              = tbl_fieldcat
      i_default                = 'X'
      i_save                   = 'X'
    TABLES
      t_outtab                 = tbl_output
    EXCEPTIONS
      program_error            = 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.                    " create_report
*&      Form  select_data
      select records for specified selections
-->  p1        text
<--  p2        text
FORM select_data.
  CLEAR: c_tcode, t_cdhdr, t_ekko, tbl_output.
  REFRESH: t_cdhdr, t_ekko, tbl_output, tbl_fieldcat.
  IF NOT p_gr IS INITIAL.
    SELECT DISTINCT a~ebeln "R3DK912960
    SELECT a~ebeln                                          "R3DK912960
           b~ebelp                                          "R3DK912960
           b~belnr
           a~bukrs
           a~bsart
           a~bedat
           b~budat
           a~ernam
           b~ernam
INTO TABLE t_ekko
FROM ekko AS a
INNER JOIN ekbe AS b
ON aebeln = bebeln
Begin of R3DK912384
AND b~bewtp = 'E'
AND b~bwart = '101'
End of R3DK912384
WHERE a~bukrs IN s_bukrs AND
    a~ebeln IN s_ebeln AND
    a~ekgrp IN s_groups AND
    a~lifnr IN s_lifnr AND
    a~bsart IN s_bsart AND
    a~ekorg IN s_ekorg and
    a~bedat IN s_bedat AND
    b~budat IN s_budat AND
    a~frgke = 'R'
    ORDER BY aebeln bbudat DESCENDING.
Begin of  R3DK912809 R3DK912960
    DELETE ADJACENT DUPLICATES FROM T_EKKO COMPARING EBELN.
End of  R3DK912809 R3DK912960
  ELSE.
  SELECT DISTINCT a~ebeln       "R3DK912960
    SELECT a~ebeln                                          "R3DK912960
           b~ebelp                                          "R3DK912960
           b~belnr
           a~bukrs
           a~bsart
           a~bedat
           b~budat
           a~ernam
           b~ernam
        INTO TABLE t_ekko
        FROM ekko AS a
        LEFT JOIN ekbe AS b
        ON aebeln = bebeln
Begin of R3DK912384
        AND b~bewtp = 'E'
        AND b~bwart = '101'
End of R3DK912384
        WHERE a~bukrs IN s_bukrs AND
              a~ebeln IN s_ebeln AND
              a~ekgrp IN s_groups AND
              a~lifnr IN s_lifnr AND
              a~bsart IN s_bsart AND
              a~ekorg IN s_ekorg AND
              a~bedat IN s_bedat AND
              a~frgke = 'R'
              ORDER BY aebeln bbudat DESCENDING.
Begin of  R3DK912809 R3DK912960
    DELETE ADJACENT DUPLICATES FROM T_EKKO COMPARING EBELN.
End of  R3DK912809 R3DK912960
  ENDIF.
  sort t_ekko by ebeln ebelp budat descending.
sivanew
  delete adjacent  duplicates from t_ekko comparing ebeln ebelp .
sivanew
IF sy-subrc EQ 0.            "R3DK912809
  IF NOT t_ekko[] IS INITIAL.                               "R3DK912809
    PERFORM process_data.
Begin of R3DK912444
    IF NOT p_excep IS INITIAL.
      PERFORM get_exceptions.
    ENDIF.
End of R3DK912444
  ENDIF.
ENDFORM.                    " select_data
*&      Form  write_fieldcat
      text
     -->P_0190   field name, if the SAP name used desc will be
                 automatically get from SAP table
     -->P_0191   Internale structure or table name
     -->P_0192   SAP table for field description
     -->P_0193   format
     -->P_1      Position
     -->P_0195   Custom Description
FORM write_fieldcat USING name tab st key pos desc.
  st_fieldcat-fieldname = name.
  st_fieldcat-tabname = tab.
  st_fieldcat-ref_tabname = st.
  st_fieldcat-key = key.
  st_fieldcat-col_pos = pos.
  st_fieldcat-seltext_m = desc.
  IF pos = 12.
    st_fieldcat-outputlen = 40.
  ENDIF.
  APPEND st_fieldcat TO tbl_fieldcat.
  CLEAR st_fieldcat.
ENDFORM.                    " write_fieldcat
*&      Form  process_record
      text
-->  p1        text
<--  p2        text
FORM process_record.
  DATA:l_ebeln LIKE ekko-ebeln.
  LOOP AT t_cdhdr.
    CLEAR: l_ebeln, ws_ebeln, ws_netwr, ws_ernam.
    MOVE t_cdhdr-objectid TO l_ebeln.
    CALL FUNCTION 'ME_EKKO_SINGLE_READ'
      EXPORTING
        pi_ebeln = l_ebeln
      IMPORTING
        po_ekko  = po_ekko.
Begin of R3DK912809 R3DK912960
   SELECT SUM( dmbtr ) INTO ws_dmbtr
     FROM ekbe WHERE ebeln = l_ebeln
                 AND vgabe = '1'
                 AND bewtp = 'E'
                 GROUP BY ebeln.
   ENDSELECT.
End of R3DK912809
    SELECT SINGLE dmbtr INTO t_ekko-dmbtr
       FROM ekbe WHERE ebeln = t_ekko-ebeln
                   AND ebelp = t_ekko-ebelp
                   AND belnr = t_ekko-belnr
                   AND vgabe = '1'
                   AND bewtp = 'E'.
    MODIFY T_EKKO.
End of R3DK912960
    SELECT SINGLE ernam INTO t_ekko-grnam
         FROM ekbe WHERE ebeln = t_ekko-ebeln
                     AND ebelp = t_ekko-ebelp
                     AND ELIKZ = 'X'.
    MODIFY T_EKKO.
    SELECT ebeln SUM( netwr ) INTO (ws_ebeln, ws_netwr)
     FROM ekpo WHERE ebeln = l_ebeln       R3DK912960
       FROM ekpo WHERE ebeln = t_ekko-ebeln                 "R3DK912960
       GROUP by ebeln.
    ENDSELECT.
    IF sy-subrc EQ 0.
      IF s_groups IS INITIAL.
        PERFORM build_output.
      ELSE.
        IF po_ekko-ekgrp IN s_groups.
          PERFORM build_output.
        ENDIF.
      ENDIF.
    ENDIF.
  ENDLOOP.
ENDFORM.                    " process_record
*&      Form  get_customer
      Get Customers if sales office specified
-->  p1        text
<--  p2        text
*&      Form  build_output
      text
-->  p1        text
<--  p2        text
FORM build_output.
  DATA: l_line   LIKE ekpo-ebelp.
  DATA: l_requisitioner LIKE ekpo-afnam.
  IF po_ekko-frgke = 'R'.
    CLEAR: tbl_output.
    tbl_output-udate = t_cdhdr-udate.
    tbl_output-utime = t_cdhdr-utime.
    tbl_output-username = t_cdhdr-username.
    tbl_output-ebeln = po_ekko-ebeln.
    tbl_output-bukrs = po_ekko-bukrs.
    tbl_output-lifnr = po_ekko-lifnr.
    tbl_output-name1 = ' '.
    tbl_output-lifnr = po_ekko-lifnr.
    tbl_output-ekgrp = po_ekko-ekgrp.
   tbl_output-ernam = po_ekko-ernam.
    tbl_output-ernam = t_ekko-ernam.
    tbl_output-budat = t_ekko-budat.
   tbl_output-grnam = t_ekko-grnam.
    tbl_output-bedat = t_ekko-bedat.
    tbl_output-dmbtr = t_ekko-dmbtr.                        "R3DK912809
    tbl_output-ebelp = t_ekko-ebelp.
    SORT T_CDHDR1.
   sivanew
   read table t_cdhdr1 with key
                  objectid = t_cdhdr-objectid binary search.
   if sy-subrc = 0.
     tbl_output-cdate = t_cdhdr1-username.
   endif.
    read table t_cdhdr1 with key
                   tcode = 'ME22N' binary search.
    if sy-subrc = 0.
      SELECT * FROM cdpos INTO TABLE t_cdpos
             WHERE objectid = t_cdhdr1-objectid AND
                   objectclas = 'EINKBELEG' AND
             changenr = t_cdhdr1-changenr.
      IF sy-subrc = 0.
        l_ponum = t_cdpos-tabkey+3(10).
        l_poline = t_cdpos-tabkey+13(6).
      ENDIF.
    ENDIF.
    IF tbl_output-ebeln = l_ponum AND tbl_output-ebelp = l_poline.
      READ TABLE t_cdhdr1 WITH KEY changenr = t_cdpos-changenr
                                  tcode = 'ME22N' BINARY SEARCH.
      IF sy-subrc = 0.
        tbl_output-cdate = t_cdhdr1-username.
      ENDIF.
    ENDIF.
ENDIF.
  select ebeln belnr budat cputm   from ekbe into table t_ekbe
                    where vgabe = '1' and
                          ebeln = t_cdhdr-objectid.
  sort t_ekbe by   budat descending cputm descending.
  delete adjacent duplicates from t_ekbe comparing ebeln.
  loop at t_ekbe.
    select mblnr usnam from mkpf into table t_mkpf
                             where mblnr = t_ekbe-belnr.
    if sy-subrc = 0.
      read table t_mkpf with key
                       mblnr = t_ekbe-belnr binary search.
      move t_mkpf-usnam to   tbl_output-grnam.
    endif.
  endloop.
    Indra
Get the user changed the record
   IF t_cdhdr-tcode = 'ME22N'.
     SELECT * FROM cdpos INTO TABLE t_cdpos
            WHERE objectid = t_cdhdr-objectid AND
                  objectclas = 'EINKBELEG' AND
            changenr = t_cdhdr-changenr.
     IF sy-subrc = 0.
       l_ponum = t_cdpos-tabkey+3(10).
       l_poline = t_cdpos-tabkey+13(6).
     ENDIF.
   ENDIF.
indra
Display creator or changer
   IF tbl_output-ebeln = l_ponum AND tbl_output-ebelp = l_poline.
     READ TABLE t_cdhdr WITH KEY changenr = t_cdpos-changenr
                                 tcode = 'ME22N' BINARY SEARCH.
     IF sy-subrc = 0.
       tbl_output-cdate = t_cdhdr-username.
     ENDIF.
   ENDIF.
Indra
  SELECT SINGLE * FROM t024
         WHERE ekgrp = po_ekko-ekgrp.
  IF sy-subrc EQ 0.
    tbl_output-eknam = t024-eknam.
  ENDIF.
  tbl_output-netwr = ws_netwr.
  SELECT SINGLE name1 FROM lfa1
    INTO tbl_output-name1
    WHERE lifnr = po_ekko-lifnr.
Get Document descriptions
  SELECT SINGLE batxt FROM t161t
         INTO tbl_output-batxt
         WHERE spras = 'E' AND
               bsart = po_ekko-bsart AND
               bstyp = po_ekko-bstyp.
Get Release code descriptions
  SELECT SINGLE frgct FROM t16fd
               INTO tbl_output-frgct
               WHERE spras = 'E' AND
                     frggr = po_ekko-frggr AND
                     frgco = po_ekko-frgsx.
  APPEND tbl_output.
ENDIF.
ENDFORM.                    " build_output
*&      Form  SORT_TABLE
      text
-->  p1        text
<--  p2        text
FORM sort_table.
SORT tbl_output BY ebeln ebelp ascending  udate  utime DESCENDING.
SORT tbl_output BY ebeln  ascending  udate  utime DESCENDING.
delete adjacent  duplicates from tbl_output comparing ebeln ebelp .
ENDFORM.                    " SORT_TABLE
*&      Form  PROCESS_DATA
      text
-->  p1        text
<--  p2        text
FORM process_data.
  LOOP AT t_ekko.
    c_tcode = 'Purchase Orders'.
   SELECT * FROM cdhdr UP TO 1 ROWS INTO TABLE t_cdhdr "R3DK912960
    SELECT * FROM cdhdr   into table t_cdhdr
            WHERE objectclas = 'EINKBELEG' AND
                 objectid = t_ekko-ebeln AND
                    tcode = 'ME28'.
    SORT T_CDHDR BY UDATE DESCENDING  UTIME DESCENDING.
    delete adjacent duplicates from t_cdhdr  comparing objectid.
     siva
       SELECT * FROM cdhdr UP TO 1 ROWS INTO TABLE t_cdhdr1
*"R3DK912960
    SELECT * FROM cdhdr  INTO TABLE t_cdhdr1
            WHERE objectclas = 'EINKBELEG' AND
                 objectid = t_ekko-ebeln AND
                    tcode = 'ME22N'.
    SORT T_CDHDR1 BY UDATE descending UTIME DESCENDING.
    delete adjacent duplicates from t_cdhdr1 comparing objectid.
   sivanew
   if c_tcode = 'ME22N'.
     SELECT * FROM cdpos INTO TABLE t_cdpos
                  WHERE objectid = t_cdhdr1-objectid AND
                        objectclas = 'EINKBELEG' AND
                  changenr = t_cdhdr1-changenr.
     IF sy-subrc = 0.
       l_ponum = t_cdpos-tabkey+3(10).
       l_poline = t_cdpos-tabkey+13(6).
     ENDIF.
   ENDIF.
*sivanew
   IF sy-subrc = 0.
     delete adjacent  duplicates from t_cdhdr comparing objectid.
    PERFORM process_record.   " process each document
   ENDIF.
  ENDLOOP.
ENDFORM.                    " PROCESS_DATA
*&      Form  get_exceptions
      text
-->  p1        text
<--  p2        text
form get_exceptions.
Display a report which shows the same released, goods receipted and
created by user
  LOOP AT tbl_output.
    IF tbl_output-username <> tbl_output-ernam OR
       tbl_output-ernam <> tbl_output-grnam.
      DELETE tbl_output.
    ENDIF.
  ENDLOOP.
endform.                    " get_exceptions

Answer 1

Hi,
first of all you should read the following thread ABAP Development It is really hard to read code without proper formatting.
It looks like you use change documents to get user name for last change. For each document you use last change document and hence you have same name for every item. I am not sure if it is possible (it should be) but for each item you need to look for last change document corresponding to this item. 
Cheers