In bom explosion instead c13 output cs12 came ,how to restrict

Question

Hi friend
      i have developed summarised bom explosion,
my requirement is from to using select option 1 to 10
it came one by one but ,only the issue is instad of cs13 output
cs12 output is coming , how to restrict
here i pasted the code
give me a solution
TABLES : MAST.
DATA: BEGIN OF ISTPO OCCURS 1000.
        INCLUDE STRUCTURE STPOX.
      DATA: END OF ISTPO.
DATA: W_TOPMAT LIKE CSTMAT.
SELECT-OPTIONS : P_MATNR FOR MAST-MATNR.
PARAMETERS     : P_WERKS TYPE MAST-WERKS.
DATA : BEGIN OF ITAB OCCURS 0,
           MATNR LIKE MAST-MATNR,
           WERKS LIKE MAST-WERKS,
           END OF ITAB.
DATA: IT_STB LIKE ISTPO OCCURS 0 WITH HEADER LINE.
START-OF-SELECTION.
CLEAR ISTPO. REFRESH ISTPO.
SELECT MATNR WERKS FROM MAST INTO CORRESPONDING FIELDS OF TABLE ITAB WHERE MATNR  IN
P_MATNR AND WERKS = P_WERKS.
LOOP AT ITAB.
  CALL FUNCTION 'CS_BOM_EXPL_MAT_V2'
    EXPORTING
      CAPID                 = 'PP01'
     MEHRS                 = 'X'
      MMAPS                 = 'X'
      BREMS                  = 'X'
      DATUV                 = SY-DATUM
      MTNRV                 = ITAB-MATNR
      WERKS                 = P_WERKS
      EMENG                 = '1'
      FBSTP                 = 'X'
     FTREL                  = 'X'
    IMPORTING
      TOPMAT                = W_TOPMAT
    TABLES
      STB                   = ISTPO
    EXCEPTIONS
      ALT_NOT_FOUND         = 1
      CALL_INVALID          = 2
      MATERIAL_NOT_FOUND    = 3
      MISSING_AUTHORIZATION = 4
      NO_BOM_FOUND          = 5
      NO_PLANT_DATA         = 6
      NO_SUITABLE_BOM_FOUND = 7
      OTHERS                = 8.
  IF SY-SUBRC = 0.
WRITE:/ 'MaterialNumber' ,21 'Description'.
SKIP 1.
WRITE: / W_TOPMAT-MATNR UNDER TEXT-H00 COLOR COL_HEADING,
         W_TOPMAT-MAKTX UNDER TEXT-H01 COLOR COL_HEADING.
LOOP AT ISTPO.
  WRITE :/ ISTPO-IDNRK,
           ISTPO-OJTXP,
           ISTPO-MENGE,
           ISTPO-MEINS.
ENDLOOP.
ENDIF.
*ENDLOOP.
SKIP 5.
ENDLOOP.
FTREL (Limited multi-level - stop explosion at items not relevant to production),
BREMS(Limited explosion),
FBSTP(Limited multi-level - stop explosion at externally procured item),
MDMPS(Limited multi-level - explode phantom assemblies at least),
MKMAT(Limited multi-level; explode KMAT),
MMAPS(Limited multi-level - explode at least M assembly (M order),
i used the above steps but , i didnot get the solution
Regards
ds

Answer 1

HI,
     i got the output partily,
LOOP AT ITAB.
  CALL FUNCTION 'CS_BOM_EXPL_MAT_V2'
    EXPORTING
      CAPID                 = 'PP01'
      MEHRS                 = '1'
      MMAPS                 = ' '
     BREMS                  = 'X'
      DATUV                 = SY-DATUM
      MTNRV                 = ITAB-MATNR
      WERKS                 = P_WERKS
      EMENG                 = '1'
      FBSTP                 = ' '
      FTREL                 = ' '
    IMPORTING
      TOPMAT                = W_TOPMAT
    TABLES
      STB                   = ISTPO
    EXCEPTIONS
      ALT_NOT_FOUND         = 1
      CALL_INVALID          = 2
      MATERIAL_NOT_FOUND    = 3
      MISSING_AUTHORIZATION = 4
      NO_BOM_FOUND          = 5
      NO_PLANT_DATA         = 6
      NO_SUITABLE_BOM_FOUND = 7
      OTHERS                = 8.
  IF SY-SUBRC = 0.
WRITE:/ 'MaterialNumber' ,21 'Description'.
SKIP 1.
WRITE: / W_TOPMAT-MATNR UNDER TEXT-H00 COLOR COL_HEADING,
         W_TOPMAT-MAKTX UNDER TEXT-H01 COLOR COL_HEADING.
  DELETE  ISTPO WHERE STUFE NE '1'.
LOOP AT ISTPO  .
  WRITE :/ ISTPO-IDNRK,
           ISTPO-OJTXP,
           ISTPO-MENGE,
           ISTPO-MEINS.
ENDLOOP.
ENDIF.
*ENDLOOP.
SKIP 5.
ENDLOOP.