ABAP Outbound Proxy with multiple entries

Question

I have message type as follows.
MT_Proxy_Matmas_out  -- DT_Proxy_Matmas_out
Matnr         1..unbounded
   Material_Num   1..1
   Material_Dec    1..1
Message Inrerface: MI_proxy_Matmas_out.
Generated Proxy has following objects.
1. Class     ZMCO_MI_PROXY_MATMAS_OUT     Proxy Class (generated)
2. Structure     ZMDT_PROXY_MATMAS_OUT     Proxy Structure (generated)
3. Structure     ZMDT_PROXY_MATMAS_OUT_MATNR     Proxy Structure (generated)
4. Structure     ZMMT_PROXY_MATMAS_OUT     Proxy Structure (generated)
5. Table Type     ZMDT_PROXY_MATMAS_OUT_MATN_TAB     Proxy Table Type (generated)
Report Program ZB_Matnr_xport.
DATA: prxy TYPE REF TO ZMCO_MI_PROXY_MATMAS_OUT.
DATA: i_data_records TYPE TABLE OF ZMDT_PROXY_MATMAS_OUT.
DATA: wa_data_records TYPE ZMDT_PROXY_MATMAS_OUT.
DATA: it type ZMMT_PROXY_MATMAS_OUT.
CREATE OBJECT prxy.
Loop at itab
MOVE_Corresponding ......to XXXXXXXXXXXXXX // we tried several option with no success here in this Loop  //
EndLoop
CALL METHOD prxy->execute_asynchronous
      EXPORTING
        output = it.
     commit work
  CATCH cx_ai_system_fault .
    DATA fault TYPE REF TO cx_ai_system_fault .
    CREATE OBJECT fault.
    WRITE :/ fault->errortext.
As you can see from above template I want move all the records of Internal table to Message Type structure before calling Proxy, CALL METHOD proxy->.........
Can someone provide me sample code how to achive this. We are on WEB AS 620.
Thanks a lot.
ST

Answer 1

suppose your table is it_datatable  of type  ZMDT_PROXY_MATMAS_OUT_MATN_TAB which contains matnr, description.  Then try the following
data : l_var type ZMMT_PROXY_MATMAS_OUT.
l_var-MT_Proxy_Matmas_out-Matnr 1[ ] = it_datatable[ ].
then
CALL METHOD prxy->execute_asynchronous
EXPORTING
output = l_var.
commit work