1:输入事务代码：SHDB.点击新建记录。

输入记录名和需要录屏的事务代码。

开始记录后会进入事务代码点击返回后会记录下操作过程。

点击程序按钮，生成可以调用的代码。

代码如下：

report ZTEST_APPLICTION
       no standard page heading line-size 255.

include bdcrecx1.

parameters: dataset(132) lower case.
***    DO NOT CHANGE - the generated data section - DO NOT CHANGE    ***
*
*   If it is nessesary to change the data section use the rules:
*   1.) Each definition of a field exists of two lines
*   2.) The first line shows exactly the comment
*       '* data element: ' followed with the data element
*       which describes the field.
*       If you don't have a data element use the
*       comment without a data element name
*   3.) The second line shows the fieldname of the
*       structure, the fieldname must consist of
*       a fieldname and optional the character '_' and
*       three numbers and the field length in brackets
*   4.) Each field must be type C.
*
*** Generated data section with specific formatting - DO NOT CHANGE  ***
data: begin of record,
* data element: VBELN_VA
        VBELN_001(030),
      end of record.

*** End generated data section ***

start-of-selection.

perform open_dataset using dataset.
perform open_group.

do.

read dataset dataset into record.
if sy-subrc <> 0. exit. endif.

perform bdc_dynpro      using 'SAPMV45A' '0102'.
perform bdc_field       using 'BDC_CURSOR'
                              'VBAK-VBELN'.
perform bdc_field       using 'BDC_OKCODE'
                              '=ENT2'.
perform bdc_field       using 'VBAK-VBELN'
                              record-VBELN_001.
perform bdc_dynpro      using 'SAPMV45A' '4001'.
perform bdc_field       using 'BDC_OKCODE'
                              '=HEAD'.
perform bdc_field       using 'BDC_CURSOR'
                              'RV45A-MABNR(01)'.
perform bdc_dynpro      using 'SAPMV45A' '4002'.
perform bdc_field       using 'BDC_OKCODE'
                              '/EBACK'.
perform bdc_field       using 'BDC_CURSOR'
                              'VBAK-VBELN'.
perform bdc_dynpro      using 'SAPMV45A' '4001'.
perform bdc_field       using 'BDC_OKCODE'
                              '/EBAC1'.
perform bdc_transaction using 'VA03'.

enddo.

perform close_group.
perform close_dataset using dataset.

如果需要调用 BDC 只需要 perform bdc_field 。
调用的实际应用例子——清账：

  LOOP AT lt_sel INTO ls_sel WHERE s_count = 0.
    CLEAR:bdcdata,lv_index,ls_alv2.
    REFRESH:bdcdata,lt_belnr.

    split ls_sel-s_belnr at ',' into TABLE lt_belnr.


    perform bdc_dynpro      using 'SAPMF05A' '0131'.
    perform bdc_field       using 'BDC_CURSOR'
                                  'RF05A-XPOS1(04)'.
    perform bdc_field       using 'BDC_OKCODE'
                                  '/00'.
    perform bdc_field       using 'RF05A-AGKON'
                                  ls_sel-kunnr.
    perform bdc_field       using 'BKPF-BUDAT'
                                  sy-datum.
    perform bdc_field       using 'BKPF-MONAT'
                                  sy-datum+4(2).
    perform bdc_field       using 'BKPF-BUKRS'
                                  ls_sel-bukrs.
*    perform bdc_field       using 'BKPF-WAERS'
*                                  'CNY'.
    perform bdc_field       using 'RF05A-XNOPS'
                                  'X'.
    perform bdc_field       using 'RF05A-XPOS1(01)'
                                  ''.
    perform bdc_field       using 'RF05A-XPOS1(04)'
                                  'X'.
    perform bdc_dynpro      using 'SAPMF05A' '0731'.
    perform bdc_field       using 'BDC_CURSOR'
                                  'RF05A-SEL01(02)'.
    perform bdc_field       using 'BDC_OKCODE'
                                  '=PA'.
*如果是表格，可以循环赋值
    LOOP at lt_belnr into ls_belnr.
      CLEAR lv_str.
      lv_index = lv_index + 1.
      CONCATENATE 'RF05A-SEL01(' lv_index ')' INTO lv_str.
          perform bdc_field       using lv_str
                                  ls_belnr-belnr.
    ENDLOOP.


*    perform bdc_field       using 'RF05A-SEL01(01)'
*                                  '5200000000'.
*    perform bdc_field       using 'RF05A-SEL01(02)'
*                                  '5200000002'.


    perform bdc_dynpro      using 'SAPDF05X' '3100'.
    perform bdc_field       using 'BDC_OKCODE'
                                  '=BU'.
    perform bdc_field       using 'BDC_CURSOR'
                                  'DF05B-PSSKT(01)'.
    perform bdc_field       using 'RF05A-ABPOS'
                                  '1'.

    opt-dismode = 'N'. "显示模式
    opt-updmode = 'L'. "更新模式
    opt-racommit = 'X'.  "提交后继续
    REFRESH gt_message.
    CALL TRANSACTION 'F-32' USING bdcdata
          OPTIONS FROM opt
          MESSAGES INTO gt_message.
    CLEAR:lv_message,lv_bdc_message.
*获取返回的错误提示    
    LOOP AT gt_message.
      IF gt_message-msgtyp = 'E' OR gt_message-msgtyp = 'A'
        OR ( gt_message-msgid = 'F5' AND gt_message-msgnr = '263' ).
        CLEAR: lv_bdc_message.
        MESSAGE ID gt_message-msgid TYPE gt_message-msgtyp NUMBER gt_message-msgnr
        WITH gt_message-msgv1 gt_message-msgv2 gt_message-msgv3 gt_message-msgv4
        INTO lv_bdc_message.
        CONCATENATE lv_message lv_bdc_message INTO lv_message.
      ENDIF.
    ENDLOOP.