Ravi,
You need to determine the beginning and end of each group of Handling Unit segments, then sort the groups in the new order, and write the parts of the iDoc to a new internal table.
Try this:
TYPES:
BEGIN OF item_list_type,
sort TYPE c,
start TYPE sytabix,
end TYPE sytabix,
END OF item_list_type.
DATA: t_items TYPE STANDARD TABLE OF item_list_type WITH HEADER LINE.
DATA: li_new TYPE STANDARD TABLE OF edidd.
DATA: x_idx TYPE i.
DATA: x_pre TYPE i. "precede Handling Unit data
DATA: x_post TYPE i. "follow Handling Unit data
FIELD-SYMBOLS: <d> TYPE edidd.
LOOP AT li_data_temp ASSIGNING <d>.
x_idx = sy-tabix.
CASE <d>-segnam.
WHEN 'E1EDL37'.
IF x_pre IS INITIAL.
x_pre = x_idx - 1.
ENDIF.
IF t_items IS NOT INITIAL.
* Mark end of previous Handling Unit group
t_items-end = x_idx - 1.
APPEND: t_items.
CLEAR: t_items.
ENDIF.
* Mark beginning of this Handling Unit group
t_items-start = x_idx.
WHEN 'E1EDL54'.
IF x_post IS INITIAL.
x_post = x_idx.
ENDIF.
* Mark end of last Handling Unit group
t_items-end = x_idx - 1.
APPEND: t_items.
ENDCASE.
ENDLOOP.
IF t_items-end IS INITIAL.
* Finish last Handling Unit group, if document did not have a E1EDL54 segment
DESCRIBE TABLE t_data LINES: t_items-end, x_post.
APPEND: t_items.
ENDIF.
APPEND LINES OF li_data_temp FROM 1 TO x_pre TO li_new.
SORT: t_items.
LOOP AT t_items.
APPEND LINES OF li_data_temp FROM t_items-start TO t_items-end TO li_new.
ENDLOOP.
APPEND LINES OF li_data_temp FROM x_post TO li_new.
The internal table li_new[] is now ordered as you desired. This approach will allow you to reorder the Handling Unit groups, each beginning with a E1EDL37 segment, according to the sort fields you define.
