====== Smart Tool Repository ======
===== Export IDoc to XML =====
[[http://www.saphub.com/ale-idoc/how-to-download-idoc-as-xml-file/|Source]]
<code abap>PARAMETERS: p_idoc TYPE edidd-docnum.

DATA: o_idoc_xml TYPE REF TO cl_idoc_xml1.
DATA: gv_string  TYPE string.
DATA: gt_string  TYPE TABLE OF string.

*Create IDoc object
CREATE OBJECT o_idoc_xml
EXPORTING
docnum = p_idoc
EXCEPTIONS
OTHERS = 1.
IF sy-subrc NE 0.
  WRITE: /'Error creating idoc object'.
  EXIT.
ENDIF.

*Get IDoc data as string
CALL METHOD o_idoc_xml->get_xmldata_as_string
  IMPORTING
    data_string = gv_string.

APPEND gv_string TO gt_string.

IF sy-subrc NE 0 OR o_idoc_xml IS INITIAL.
  WRITE: /'Error getting xml data as string'.
  EXIT.
ENDIF.

*Download IDoc data as XML file
CALL FUNCTION 'GUI_DOWNLOAD'
  EXPORTING
    filename = 'C:\idoc.xml'
  TABLES
    data_tab = gt_string.</code>