異步RFC：在異步RFC中，執行不依賴與RFC服務器是否可用。被調用的遠程功能啟動后，調用程序繼續運行，遠程功能和調用程序處理相互分離。遠程功能的結果可以延時接收。 RFC異步調用只能使用Tables、Exporting和Exceptions參數。調用程序不等待Function返回結果，不能直接從被調用的函數中返回結果，可以在後續的回調子程序中獲取結果。
代码语言：javascript复制PARAMETERS: plnum LIKE plaf-plnum.
DATA: l_return LIKE bapireturn1,
l_header LIKE bapiplaf_e1,
l_ca LIKE bapi_kbko,
l_ca1 LIKE bapi_kbko,
l_ca2 LIKE bapi_kbko,
l_com LIKE TABLE OF bapi_pldordcomp_e1 WITH HEADER LINE,
l_capa LIKE TABLE OF bapi_pldordcapa_e1 WITH HEADER LINE,
l_capa1 LIKE TABLE OF bapi_pldordcapa_e1 WITH HEADER LINE,
l_capa2 LIKE TABLE OF bapi_pldordcapa_e1 WITH HEADER LINE.
CALL FUNCTION 'BAPI_PLANNEDORDER_GET_DETAIL'
DESTINATION '目標系統'
STARTING NEW TASK 'B1'//指明異步調用模式
PERFORMING return ON END OF TASK//調用子程序接收返回結果
EXPORTING
plannedorder = plnum.
IF sy-subrc = 0.
write:/'Success call'.
ENDIF.
AT USER-COMMAND.
IF sy-ucomm = 'OK'.
WRITE:/ 'Header Info'.
ULINE.
WRITE:/ l_header-plannedorder_num,
l_header-material,
l_header-plan_plant,
l_header-prod_plant ,
l_header-order_type,
l_header-total_plord_qty,
l_header-order_start_date,
l_header-order_fin_date.
ULINE.
WRITE:/ 'Companentsdata Info'.
ULINE.
LOOP AT l_com.
WRITE:/ l_com-material.
ENDLOOP.
ENDIF.
FORM return USING taskname.
RECEIVE RESULTS FROM FUNCTION 'BAPI_PLANNEDORDER_GET_DETAIL'
keeping task//使已加載的遠程上下文保持至調用程序結束，直到遠程連接終止。
IMPORTING
return = l_return
headerdata = l_header
capacityheaderdata1 = l_ca
capacityheaderdata2 = l_ca1
capacityheaderdata3 = l_ca2
TABLES
componentsdata = l_com
capacitydata1 = l_capa
capacitydata2 = l_capa1
capacitydata3 = l_capa2.
SET USER-COMMAND 'OK'.
ENDFORM.通常情況下，回調子程序不會自動運行，只有出現對話步驟或調用程序進入內存暫時掛起狀態時，才會觸發該子程序。
