file upload program to archive server

[Aiswariyaah]

It is a simple program to upload file into archive server. all the values are getting uploaded properly in the table toa01 while for the reserve field , the values getting are only * and not updating the values same as data being uploaded only for the reserve field. Did i made mistake in declaring the data? 

DATA : DOC_TYPE TYPE string.
       doc_type = wa_table-reserve.

    CALL FUNCTION 'ARCHIV_CONNECTION_INSERT'
      EXPORTING
        archiv_id             = wa_table-archiv_id
        arc_doc_id            = wa_table-arc_doc_id
        ar_date               = wa_table-ar_date
        ar_object             = wa_table-ar_object
        del_date              = wa_table-del_date
       MANDANT               = SY-MANDT
        object_id             = wa_table-object_id
        sap_object            = wa_table-sap_object
        doc_type              = ' '
*       BARCODE               = ' '
*       FILENAME              = ' '
*       DESCR                 = ' '
*       CREATOR               = ' '
      EXCEPTIONS
        error_connectiontable = 1
        OTHERS                = 2.
    IF sy-subrc = 0.