How to populate the payment block through the BAPI_INCOMINGINVOICE_CREATE

Question

Hi,
I am trying to create the incoming invoice through the BAPI (BAPI_INCOMINGINVOICE_CREATE) .
In MIRO transaction when i create the Invoice without any tax , the <b>payment block shows free for payement</b> . How to give create the invoice with the following condition through the BAPI (BAPI_INCOMINGINVOICE_CREATE) .  when there is Tax : The payment block = 'R' (Invoice verification) .
No Tax                : The payment block = ' ' (Free for Payment).

Answer 1

But everytime the invoice is created the Payment block is set to 'R' even if the Tax is not given.
Following i am populating
<b>Header Structure:</b>
<b>Test                   Value Description                      PI Header Data Fields</b>
‘X’                Invoice Indicator     HEADERDATA-INVOICE_IND
SPACE                Document Type     HEADERDATA-DOC_TYPE
05-11-2006           Document Date     HEADERDATA-DOC_DATE
17-11-2006           Posting Date                     HEADERDATA-PSTNG_DATE
123456-B1                Ref Document Number     HEADERDATA-REF_DOC_NO
9001               Company Code     HEADERDATA-COMP_CODE
7006924               Vendor Number     HEADERDATA-DIFF_INV
BRL               Currency                     HEADERDATA-CURRENCY
BRL               Currency                     HEADERDATA-CURRENCY_ISO
10000               Gross Amount      HEADERDATA-GROSS_AMOUNT
05-11-2006          Baseline ate                     HEADERDATA-BLINE_DATE
DD               Header Text                     HEADERDATA-HEADER_TXT
0001               Payment Terms     HEADERDATA-PMNTTRS
123456-B1               Ref Document Number     HEADERDATA-REF_DOC_NO
Z1               NF Type                       HEADERDATA-J_1BNFTYPE
space               Payment Block Key      HEADERDATA-PMNT_BLOCK
<b>For Item Structure:</b>
<b>Test Data     Description            BAPI Item Data Fields</b>
000001                     Invoice Item           ITEMDATA-INVOICE_DOC_ITEM
4500021387     Purchase Order Number   ITEMDATA-PO_NUMBER
0010                     Purchase Order Item           ITEMDATA-PO_ITEM
Z1                     Tax Code                           ITEMDATA-TAX_CODE
SP 50308                     Tax Jurisdiction Code           ITEMDATA-TAXJURCODE
10000                      Item Amount           ITEMDATA-ITEM_AMOUNT
200                      Item Quantity           ITEMDATA-QUANTITY
EA                      Purchase Order Unit           ITEMDATA-PO_UNIT
Can u please tell me what is the mistake or any other ways of populating the Payment block.
Always the payment block is 'R' in MIR4 transaction even if i give space in the BAPI