BKPF-KURSF not updated with BAPI_ACC_DOCUMENT_POST tax item.

Hi All,

I wanted to post FI document using BAPI_ACC_DOCUMENT_POST which contain tax item in structure BAPIACTX09 (accounttax). I had passed the exchange rate to the field EXCH_RATE. The document was posted successfully. However, the exchange rate in document header BUKRS-KURSF was not updated with the exchange rate passed in through the BAPI. Below are the values passed in to the BAPI.

DOCUMENTHEADER

USERNAME = sy-uname

HEADERTXT = 'testing exchange rate'

COMP_CODE = '1100'

DOC_DATE = '31.01.2015'

PSTNG_DATE = '31.01.2015'

DOC_TYPE = 'SR'

REF_DOC_NO = '1900000014'

ACCOUNTTAX

ITEMNO_ACC = '0000000001'

GL_ACCOUNT = '27450001'

TAX_CODE = 'TX'

ITEMNO_ACC = '0000000002'

GL_ACCOUNT = '47250001'

TAX_CODE = 'SR'

CURRENCYAMOUNT

ITEMNO_ACC = '0000000001'

CURR_TYPE = '00'

CURRENCY = 'USD'

AMT_DOCCUR = 10

EXCH_RATE = 3.0470

AMT_BASE = '1000

ITEMNO_ACC = '0000000002'

CURR_TYPE = '00'

CURRENCY = 'USD'

AMT_DOCCUR = -10

EXCH_RATE = 3.0470

AMT_BASE = '1000

Any tips on resolving this issue?

Thanks in advance.

Best regards,

Kah Ming