Creating an Invoice from XI doesn't work

Question

I have tested in se37. It works but it doesn't in XI RFC Adapter. All paramters are the same. I have got an exception - The system could not determine the "Ordering Party". Could you help me which parameter is incorrect?
I have read notes 206068, 730870. And I added all needed zeros to nummeric values.
My parameters are:
<?xml version="1.0" encoding="UTF-8" ?>
<ns0:BAPI_INVOICEEC_CREATE xmlns:ns0="urn:sap-com:document:sap:rfc:functions">
     <I_INP_TYPE>2</I_INP_TYPE>
     <I_INV_HEADER>
     <PROCESS_TYPE>INV</PROCESS_TYPE>
     <CURRENCY>USD</CURRENCY>
     <CURRENCY_ISO>USD</CURRENCY_ISO>
     <LANGU_ISO>EN</LANGU_ISO>
    </I_INV_HEADER>
    <I_INV_ITEMS>
      <item>
           <QUANTITY>1.000</QUANTITY>
           <PRICE>100.0000</PRICE>
           <PRICE_UNIT>1</PRICE_UNIT>
           <VALUE>100.0000</VALUE>
           <PO_NUMBER>0200000112</PO_NUMBER>
           <PO_ITEM_NUMBER>0000000001</PO_ITEM_NUMBER>
           <CONF_NUMBER>0100000111</CONF_NUMBER>
         <CONF_ITEM_NUMBER>0000000001</CONF_ITEM_NUMBER>
      </item>
  </I_INV_ITEMS>
</ns0:BAPI_INVOICEEC_CREATE>

Answer 1

Hi Sergey,
It sounds like the issue you had with BAPI_CONFEC_CREATE.
The same logic apply to complete the GR or IV data before creating it in SRM.
You did not reply to my previous answer:
"Execute BBP_GET_PURCHASING_PARTY in SE37 with your PO GUID to check if the system can determine the ordering/purchasing party.
This BAPI is designed for standalone PO, but not for extended POs.... so the result is not guaranteed."
Is your PO 0200000112 a standalone PO ?
If yes, what is the result of BBP_GET_PURCHASING_PARTY ?
Rgds
Christophe