Using BAPI_CUSTOMERCONTRACT_CHANGE only change the contract end not item end of contract

[DanielleinaD]

Hi experts,

now that i understand how to use the bapi i have another question. I only need to change the upper red rectangle with end of contract but if i use the bapi like in the code below. The item section end of contract also get changed. Any idea how to fix this?

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*salesdokument 

DATA: l_vblen TYPE BAPIVBELN-VBELN. 

* workarea for Header in 

DATA: wa_header TYPE BAPISDH1. 

* workera for Headerinx 

DATA: wa_headerx TYPE BAPISDH1X. 



* table and workarea 

DATA wa_kontrakt TYPE BAPICTR.

DATA t_kontrakt TYPE TABLE OF BAPICTR.

*table and workera for  Contract Data InX

DATA wa_kontraktx TYPE BAPICTRX. 

DATA t_kontraktx TYPE BAPITCTRX. 



* Return 

DATA return TYPE BAPIRET2. 



* some salesdokument 

l_vblen = '123456'.



wa_kontrakt-ITM_NUMBER = 00000.

wa_kontrakt-CON_EN_DAT = 20190303. 



insert wa_kontrakt into t_kontrakt. 



***********************************



wa_kontraktx-ITM_NUMBER = 00000.

wa_kontraktx-UPDATEFLAG = 'U'. 

wa_kontraktx-CON_EN_DAT = 'X'.



insert wa_kontraktx into t_kontraktx.







CALL FUNCTION 'BAPI_CUSTOMERCONTRACT_CHANGE'

  EXPORTING

    SALESDOCUMENT               = l_vblen

    CONTRACT_HEADER_IN          = wa_header

    CONTRACT_HEADER_INX         = wa_headerx

*   SIMULATION                  =

*   BEHAVE_WHEN_ERROR           = ' '

*   INT_NUMBER_ASSIGNMENT       = ' '

*   LOGIC_SWITCH                =

*   NO_STATUS_BUF_INIT          = ' '

  TABLES

    RETURN                      = return 

*   CONTRACT_ITEM_IN            =

*   CONTRACT_ITEM_INX           =

*   PARTNERS                    =

*   PARTNERCHANGES              =

*   PARTNERADDRESSES            =

*   CONDITIONS_IN               =

*   CONDITIONS_INX              =

*   CONTRACT_CFGS_REF           =

*   CONTRACT_CFGS_INST          =

*   CONTRACT_CFGS_PART_OF       =

*   CONTRACT_CFGS_VALUE         =

*   CONTRACT_CFGS_BLOB          =

*   CONTRACT_CFGS_VK            =

*   CONTRACT_CFGS_REFINST       =

*   CONTRACT_TEXT               =

    CONTRACT_DATA_IN            = t_kontrakt

    CONTRACT_DATA_INX           = t_kontraktx

*   CONTRACT_KEYS               =

*   EXTENSIONIN                 =

          .