Program works but background job for that program fails....

Question

I have a requirement where I have to collect the details of the purchase order and put the details in XML file format and FTP the XML file to an external third party FTP Server.
To realize this I developed a report program which follows following logic.
1)     First I collected the PO details by calling the BAPI BAPI_PO_GETDETAIL1.
2)     Then using the following link "/people/r.eijpe/blog/2005/11/10/xml-dom-processing-in-abap-part-i--convert-an-abap-table-into-xml-file-using-sap-dom-approach
I converted these PO details to the XML file format that the third party people accept.
       In the code I used u201CCALL METHOD cl_gui_frontend_services=>gui_downloadu201D and in this process first the XML file is generated and is getting stored on my deskytop.
3)     Then I called HTTP_SCRAMBLE, FTP_CONNECT, FTP_COMMAND , FTP_DISCONNECT and RFC_CONNECTION_CLOSE.
This works perfectly well and each time I execute the report the file is getting FTPu2019ed to the third party FTP server.
Now I tried to schedule a batch job for this and the batch job fails with follwing errors
02/25/2009 15:08:47 Error in Control Framework
Message Class  = FES         
Message Number = 022  
Message Type   = E
02/25/2009 15:08:47 Job cancelled after system exception ERROR_MESSAGE 
Message Class  = 00        
Message Number = 564  
Message Type   = A                
Can some one tell me what is going wrong. My report works perfect in front end but fails if I try to schedule a background job for it in SM36.
Can you please tell me whatz going wrong with batch job? Any Help is highly appreciated.
Regards,
JEssica SAm

Answer 1

Robert...Thanks for the reply...
I am using follwing code
l_xml_size = l_ostream->get_num_written_raw( ).
    CALL METHOD cl_gui_frontend_services=>gui_download
      EXPORTING
        bin_filesize = l_xml_size
        filename     = FILEPATH
        filetype     = 'BIN'
      CHANGING
        data_tab     = l_xml_table
      EXCEPTIONS
        OTHERS       = 24.
    IF sy-subrc <> 0.
      MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
                 WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
Now what changes should i make..where should i store my XML file then instead of my desktop?
and whih Function Module should i Use..