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前言

一般涉及修改财务凭证，或者其它凭证，不应直接更新数据库，而是使用系统提供的function module,或者BAPI，或者使用BDC。

一、

示例：pandas 是基于NumPy 的一种工具，该工具是为了解决数据分析任务而创建的。

二、使用步骤

1.FI_DOCUMENT_CHANGE

注意一般调用结束后还应该考虑commit work，和rollback work。

如果手动SE37测试发现在S/4没更新ACDOCA可能是就是这个原因导致的，具体可查看解释：

2713775 - FI_DOCUMENT_CHANGE is not updating ACDOCA - SAP for Me

代码如下（示例）：

*&---------------------------------------------------------------------*
*& Report ZTEST
*&---------------------------------------------------------------------*
*& Test program: Update FI document
*&---------------------------------------------------------------------*
report ztest.

* Constants document to be changed - TO BE CHANGED
constants:
  lc_bukrs type bukrs      value 'BEN0',
  lc_belnr type belnr_d    value '0560000096',
  lc_gjahr type gjahr      value '2017',
  lc_buzei type buzei      value '001'.


* Constants
constants:
  lc_k     type koart      value 'K',              " Vendor Account Type
  lc_gname type eqegraname value 'BKPF',           " Elementary Lock of Lock Entry (Table Name)
  lc_zuonr type char05     value 'ZUONR'.          " Field name for assignment at line item


* Variables
data: lv_garg  type eqegraarg.                     " Argument String of Lock Entry

* Structures
data: ls_accchg     type accchg.                   " Changing FI Document Work Area

* Tables
data:
  lt_accchg type standard table of accchg,         " Changing FI Document
  lt_enq    type standard table of seqg3.          " Lock entry details

*     Filling the fields to be changed
ls_accchg-fdname = lc_zuonr.
ls_accchg-newval = 'TEST UPDATE'.              " New value assignment field - TO BE CHANGED
append ls_accchg to lt_accchg.

** UPDATE FI DOCUMENT
if lt_accchg is not initial.
*     Check if there is lock on document before proceeding
  call function 'ENQUEUE_READ'
    exporting
      gclient               = sy-mandt
      gname                 = lc_gname             " BKPF
      garg                  = lv_garg
    tables
      enq                   = lt_enq
    exceptions
      communication_failure = 1
      system_failure        = 2
      others                = 3.

  if sy-subrc eq 0 and lt_enq is initial.

*     Call the FM to update the FI document
    call function 'FI_DOCUMENT_CHANGE'
      exporting
        i_bukrs              = lc_bukrs
        i_belnr              = lc_belnr
        i_gjahr              = lc_gjahr
        i_buzei              = lc_buzei
      tables
        t_accchg             = lt_accchg
      exceptions
        no_reference         = 1
        no_document          = 2
        many_documents       = 3
        wrong_input          = 4
        overwrite_creditcard = 5
        others               = 6.

    if sy-subrc = 0.
*       Commit the changes
      call function 'BAPI_TRANSACTION_COMMIT'
        exporting
          wait = 'X'.
    endif.
  endif.
endif.

2.FI_ITEMS_MASS_CHANGE

这个FM里面其实是在使用BDC进行修改，

代码如下（示例）：

CALL FUNCTION 'FI_ITEMS_MASS_CHANGE'
EXPORTING
S_BSEG = wa_bseg
IMPORTING
ERRTAB = it_errtab[]
TABLES
IT_BUZTAB = it_buztab
IT_FLDTAB = it_fldtab
EXCEPTIONS
BDC_ERRORS = 1
OTHERS = 2

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