Invoice Posting - Document not created

Hi,

I'm using BAPI_INCOMINGINVOICE_CREATE to create an invoice with reference to Purchase Order. We are facing below 2 issues.

• When trying to create an invoice through SE37, Invoice created but document not found in the database.
• When trying to create through program using above BAPI, it is returning PO does not exist.

Code:

* Header
headerdata-invoice_ind = 'X'.
headerdata-doc_date    = '11.02.2014'.
headerdata-pstng_date  = '11.02.2014'.
headerdata-comp_code  = '1000'.
headerdata-currency = 'USD'.
headerdata-gross_amount = '50.0000'.

* Item
ls_itemdata-invoice_doc_item = '000001'.
ls_itemdata-po_number        = '10000001'.
ls_itemdata-po_item          = '00010'.
ls_itemdata-tax_code = 'V0'.
ls_itemdata-item_amount = '50.0000'.
ls_itemdata-quantity = '15.000'.
ls_itemdata-po_unit = 'EA'.
APPEND ls_itemdata TO itemdata.


CALL FUNCTION 'BAPI_INCOMINGINVOICE_CREATE'
   EXPORTING
     headerdata          = headerdata
*   ADDRESSDATA         =
   IMPORTING
     invoicedocnumber    = invoicedocnumber
     fiscalyear          = fiscalyear
   TABLES
     itemdata            = itemdata
*   ACCOUNTINGDATA      =
*   GLACCOUNTDATA       =
*   MATERIALDATA        =
*   TAXDATA             =
*   WITHTAXDATA         =
*   VENDORITEMSPLITDATA =
     return              = return.
*   EXTENSIONIN         =
*   TM_ITEMDATA         =
*   NFMETALLITMS        =

Please help us to resolve these issues.

Thanks

Gangadhar