DATA : IO_FACADE        TYPE REF TO CL_UKM_FACADE,
       IO_CALCULATOR    TYPE REF TO IF_UKM_CALCULATOR,
       IO_PARTNER       TYPE REF TO CL_UKM_BUSINESS_PARTNER,
       IO_BUPA_FACTORY  TYPE REF TO CL_UKM_BUPA_FACTORY,
       IO_ACCOUNT       TYPE REF TO CL_UKM_ACCOUNT,
       LW_BP_CREDIT_SGM TYPE UKM_S_BP_CMS_SGM,
       LT_RETURN        TYPE UKM_T_MONITOR_RETURN.

DATA:I_PARTNER TYPE KUNNR VALUE ‘500363‘.
DATA:I_CREDITSEGMENT TYPE UKM_CREDIT_SGMNT VALUE ‘C001‘.
I_PARTNER = |{ I_PARTNER ALPHA = IN }|.
IO_FACADE = CL_UKM_FACADE=>CREATE( I_ACTIVITY = CL_UKM_CNST_EVENTING=>BP_MAINTENANCE ).
IO_CALCULATOR = IO_FACADE->GET_CALCULATOR( ).
IO_BUPA_FACTORY = IO_FACADE->GET_BUPA_FACTORY( ).

******read businee partner***************
IO_PARTNER = IO_BUPA_FACTORY->GET_BUSINESS_PARTNER( I_PARTNER ).

CALL METHOD IO_BUPA_FACTORY->GET_CREDIT_ACCOUNT
  EXPORTING
    I_PARTNER         = I_PARTNER
    I_CREDIT_SGMNT    = I_CREDITSEGMENT
  RECEIVING
    RO_CREDIT_ACCOUNT = IO_ACCOUNT.

IO_ACCOUNT->GET_BP_CMS_SGM( IMPORTING ES_BP_CMS_SGM = LW_BP_CREDIT_SGM ).
LW_BP_CREDIT_SGM-CREDIT_LIMIT = ‘10.00‘.
LW_BP_CREDIT_SGM-XCRITICAL = ‘X‘.
LW_BP_CREDIT_SGM-LIMIT_CHG_DATE = SY-DATUM.
IO_ACCOUNT->SET_BP_CMS_SGM( EXPORTING IS_BP_CMS_SGM = LW_BP_CREDIT_SGM ).
IO_BUPA_FACTORY->SAVE_ALL( ).
"下面这一句很关键
CALL FUNCTION ‘BAPI_TRANSACTION_COMMIT‘
  EXPORTING
    WAIT = ‘X‘.