*********I wanted to add an new line item.***.. this is my code..********
LOOP AT gt_input3 INTO st_input3.
*Finding Max No of line Items
IF fl_set IS INITIAL.
READ TABLE gt_vbap INTO st_vbap WITH KEY vbeln = st_input3-vbeln.
IF sy-subrc EQ 0.
lv_posnr = st_vbap-posnr.
fl_set = 'X'.
ENDIF.
ENDIF.
*Populate Item details
lv_posnr = lv_posnr + 10.
lv_vbeln = st_input3-vbeln.
lv_order_header_inx-updateflag = 'U'.
st_order_item_in-itm_number = lv_posnr.
st_order_item_in-material = st_input3-matnr.
st_order_item_in-target_qty = st_input3-imv_qty.
st_order_item_in-plant = st_input3-werks.
st_order_item_in-store_loc = st_input3-lgort.
APPEND st_order_item_in TO lt_order_item_in.
*Populate item updation Details
st_order_item_inx-itm_number = lv_posnr.
st_order_item_inx-updateflag = 'U'.
st_order_item_inx-material = 'X'.
st_order_item_inx-plant = 'X'.
st_order_item_inx-store_loc = 'X'.
st_order_item_inx-target_qty = 'X'.
APPEND st_order_item_inx TO lt_order_item_inx.
*Populate the Schedule Lines
st_schedule_lines-itm_number = lv_posnr.
st_schedule_lines-sched_line = '0001'.
st_schedule_lines-req_qty = st_input3-imv_qty.
APPEND st_schedule_lines TO lt_schedule_lines.
*Populate the update details of schedule lines
st_schedule_linesx-itm_number = lv_posnr.
st_schedule_linesx-sched_line = '0001'.
st_schedule_linesx-req_qty = 'X'.
st_schedule_linesx-updateflag = 'U'.
APPEND st_schedule_linesx TO lt_schedule_linesx.
AT END OF vbeln.
*Call BAPI Sales order change
CALL FUNCTION 'BAPI_SALESORDER_CHANGE'
EXPORTING
salesdocument = lv_vbeln
order_header_inx = lv_order_header_inx
TABLES
return = lt_return
order_item_in = lt_order_item_in
order_item_inx = lt_order_item_inx
schedule_lines = lt_schedule_lines
schedule_linesx = lt_schedule_linesx.
*Save Sales Order
CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'
EXPORTING
wait = 'X'.
CLEAR lv_posnr.
READ TABLE lt_return INTO st_return WITH KEY type = 'E'.
st_ipfile_err3-message = st_return-message.
*Error Log
LOOP AT gt_temp3 INTO st_temp3.
IF st_ipfile_err3-message IS NOT INITIAL.
MOVE st_temp3-record TO st_ipfile_err3-record.
IF fl_set1 IS INITIAL.
APPEND st_temp_err TO gt_ipfile_err3.
fl_set1 = 'X'.
ENDIF.
APPEND st_ipfile_err3 TO gt_ipfile_err3.
ELSE.
APPEND st_temp3 TO gt_audit3.
ENDIF.
CLEAR : st_temp3,
st_temp_err,
st_ipfile_err3,
fl_set.
ENDLOOP.
REFRESH : gt_zrman,
