获利能力分析COPA的BAPI：BAPI_COPAACTUALS_POSTCOSTDATA 通过增强返回凭证号

用这个BAPI：BAPI_COPAACTUALS_POSTCOSTDATA 记录销售成本的时候，发现不能return生产的co凭证号，利用内存应该是最好的方法。

SCN上的帖子：https://blogs.sap.com/2013/11/22/to-get-copa-document-number-returned-by-bapicopaactualspostcostdata-posting/

参照这个方法我做了第四代增强的开发

    GV_CALL_COPA_BAPI_INDICATOR = 'Y' .
    EXPORT GV_CALL_COPA_BAPI_INDICATOR TO MEMORY ID 'ZCOPA_UPD_BAPI1'.
    。
    。
    。
    IMPORT GV_MEMID_COPADOC  FROM MEMORY ID 'ZCOPA_UPD_BAPI'.

RKE_SERVE_ACT_DOC_NUMBER

代码如下：

*$*$-Start: ZEHM_POINT_001----------------------------------------------------------------------$*$*
ENHANCEMENT 1  ZFICO_COPA_EHMP_UPD_BY_BAPI.    "active version
*EHM BY ZHAIMING 2016-10-20 23:39:29 bapi用
  DATA: GV_MEMID_COPADOC            TYPE RKE_BELNR,
        GV_CALL_COPA_BAPI_INDICATOR TYPE CHAR1.

  DATA: BEGIN OF LW_LINE_ITEM,
          BELNR TYPE RKE_BELNR,
        END OF LW_LINE_ITEM.
  FIELD-SYMBOLS  TYPE ANY.

  IMPORT GV_CALL_COPA_BAPI_INDICATOR FROM MEMORY ID 'ZCOPA_UPD_#### .

  IF GV_CALL_COPA_BAPI_INDICATOR EQ 'Y'.
    ASSIGN LINE_ITEM_TAB TO .
    MOVE-CORRESPONDING  TO LW_LINE_ITEM .
    GV_MEMID_COPADOC = LW_LINE_ITEM-BELNR .
    EXPORT GV_MEMID_COPADOC TO MEMORY ID 'ZCOPA_UPD####'.
  ENDIF.
ENDENHANCEMENT.
*$*$-End:   ZEHM_POINT_001----------------------------------------------------------------------$*$*

我同事没有看我写的代码也做了这个增强，思路就是在增强里调用使用BAPI程序的子程序，方法可以 但是针对某个程序做开发，不能广泛适用。

*$*$-Start: (1)---------------------------------------------------------------------------------$*$*
ENHANCEMENT 1  ZENH_####.    "active version
*
  PERFORM ######### IN PROGRAM ZFIR####
    USING ERKRS
          T_PALEDGER
          LINE_ITEM_TAB[].
ENDENHANCEMENT.
*$*$-End:   (1)---------------------------------------------------------------------------------$*$*

附原帖内容：

To get copa document number returned by “BAPI_COPAACTUALS_POSTCOSTDATA” posting

Abstract   

While posting COPA document by BAPI “BAPI_COPAACTUALS_POSTCOSTDATA” , this BAPI

does not return successful records with generated copa document number.

But in case system need to capture generated copa doc number there is workaround with

implicit enhancement withing bapi as described in doc, 

About the Domain 

SAP ABAP/FICO module can use this document. This will help them to get generated COPA

document number which is posted by BAPI_COPAACTUALS_POSTCOSTDATA. 

Steps involved 

The step that needs to be followed is as below. 

It’s divided mainly into 2 section . 

A. custom program

B. Enhancement 

Create a Custom Program like ZCOPA_UPDATE .

Please follow steps given below for this program. 

• Export BAPI_Call indicator from your program to memory id

          This indicator will make sure enhancement will be trigger only in case bapi will be called for custom program 

     gv_call_copa_bapi_indicator = ‘Y’ . 

          EXPORT gv_call_copa_bapi_indicator TO MEMORY ID ‘ZCOPA_UPD_BAPI1’. 

• Call Bapi to post data

       *To post Copa document        

        CALL FUNCTION ‘BAPI_COPAACTUALS_POSTCOSTDATA’

          EXPORTING           

            operatingconcern = ip_operatingconcern           

            testrun          = ip_testrun           

          TABLES           

            inputdata        = lt_bapi_copa_data           

            fieldlist        = lt_bapi_copa_field           

            return           = lt_return. 

• IF lt_return[] IS INITIAL ,means copa doc posted ,then only read copa document number .

               In case there is any record in return with message type E or A it means there is an error while generating copa doc , so do not import                doc numner from  ID ‘ZCOPA_UPD_BAPI’ 

•      CALL FUNCTION ‘BAPI_TRANSACTION_COMMIT’. 
• Importing copa document number from enhancement only if lt_return is initial

          or have S,I,W message type.because doc number can be  populated in error cases also as this enhancement from where exporting  memory  

     ID ‘ZCOPA_UPD_BAPI’ is before actual posting , so always check return table (is initial or have S,I,W message               type only) 

         IMPORT gv_memid_copadoc  FROM MEMORY ID ‘ZCOPA_UPD_BAPI’ . 

         So gv_memid_copadoc  will have copa document number which is generated.  

Create a implicit enhancement like ZCOPA_ENH_UPDATE .   

Please follow steps given below for this enhancement. 

• Create implicit enhancement in FM “RKE_SERVE_ACT_DOC_NUMBER “  in the end of function. 

Which will be used during BAPI posting as this FM function to get next available document number for COPA posting , But actual posting will happen after this FM .

So at this stage we will be able to get COPA doc number which will be generated later on and confirm if there is no error in return table of BAPI .

As Actual copa posting perform  is refreshing inputdata table , and not returning success message we need to use this way . 

• Import BAPI called by Custom Program indicator to make sure enhancement will be triggered only if BAPI call from custom program 

IMPORT gv_call_copa_bapi_indicator FROM MEMORY ID ‘ZCOPA_UPD_BAPI1’ . 

if gv_call_copa_bapi_indicator EQ ‘Y’ . 

then only create following steps 

• Define field-symbol  with genric type as line item table which contain copa records is genric type and define workarea with field Belnr. 

*As line item table type genric , so get doc no using field symbol
ASSIGN LINE_ITEM_TAB to .

*As field symbol type any defined work area with belnr which contain copa doc no
MOVE-CORRESPONDING to lw_line_item . 

• Get copa document number in variable

      GV_MEMID_COPADOC = lw_line_item–belnr . 

• And Export Copa Doc number to memory id. 

     EXPORT GV_MEMID_COPADOC to memory id ‘ZCOPA_UPD_BAPI’.

Output 

Copa document number will be retrieved successfully from BAPI. 

Conclusion 

This code could be used to get copa document number generated through BAPI  psoting .