Umlaute/Sonderzeichen beim Einspielen von Batch-Input Mappen

Code: Alles auswählen.

*************DECLARATIONS******************
include bdcrecx1.
DATA: BEGIN OF BDC_DATA OCCURS 0.
      INCLUDE STRUCTURE BDCDATA.
DATA: END OF BDC_DATA.
DATA: BEGIN OF ITAB OCCURS 0,
  MATNR LIKE RMMG1-MATNR,
  KDMAT LIKE MV10A-KDMAT,
  MAKTX LIKE MAKT-MAKTX,
  VTTX1 LIKE RSTXT-TXLINE,
  VTTX2 LIKE RSTXT-TXLINE,
  MEINH LIKE MARA-MEINS,
  KUNNR LIKE MV10A-KUNNR,
  WERK LIKE RMMG1-WERKS,
  VKORG LIKE RMMG1-VKORG,
  VTWEG LIKE RMMG1-VTWEG,
  SPART LIKE MARA-SPART,
  POSTY LIKE MARA-MTPOS_MARA,
  TAXKM LIKE MG03STEUER-TAXKM,
  KTGRM LIKE MVKE-KTGRM,
  END OF ITAB.
*************INITIALIZATIONS***************
start-of-selection.
CLEAR BDC_DATA.
REFRESH BDC_DATA.
*************UPLOAD*******************
PERFORM DATEN_LADEN USING
        'C:\Datenmigration\uploadmm01.txt'.
***CALL TRANSACTION****
perform open_group.
LOOP AT ITAB.
perform bdc_dynpro      using 'SAPLMGMM' '0060'.
usw. usw...
perform bdc_field       using 'BDC_OKCODE'
                              '=SICH'.
perform bdc_transaction using 'VK11'.
ENDLOOP.
perform close_group.
********************FORMS******************
FORM DATEN_LADEN USING DATEI.
  CALL FUNCTION 'GUI_UPLOAD'
  EXPORTING
    FILENAME = DATEI
    FILETYPE = 'ASC'
    HAS_FIELD_SEPARATOR = 'X'
  TABLES
    DATA_TAB = ITAB
  EXCEPTIONS
    FILE_OPEN_ERROR = 1
    FILE_READ_ERROR = 2
    NO_BATCH = 3
    GUI_REFUSE_FILETRANSFER = 4
    INVALID_TYPE = 5
    NO_AUTHOITY = 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.
ENDFORM.