OrderImportService Error

Summary

OrderImportService Error

Content

Hi,

We are trying to create a Sales Order in Order Management Cloud using the OrderImportService but it is failing with the following error :

JBO-29000: Unexpected exception caught: java.lang.reflect.InvocationTargetException, msg=null: null

Please help us resolve this issue.

I have added the payload being used.

Thanks,

Ankish

Code Snippet

Test_Create_SO.xml 
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
   <ns1:createOrders xmlns:ns1="http://xmlns.oracle.com/apps/scm/fom/importOrders/orderImportService/types/">
     <ns1:request xmlns:ns2="http://xmlns.oracle.com/apps/scm/fom/importOrders/orderImportService/">
      <ns2:BatchName/>
      <ns2:Order>
        <ns2:SourceTransactionIdentifier>1907090520</ns2:SourceTransactionIdentifier>
        <ns2:SourceTransactionSystem>OPS</ns2:SourceTransactionSystem>
        <ns2:SourceTransactionNumber>1907090520</ns2:SourceTransactionNumber>
        <ns2:BuyingPartyId>300000181983193</ns2:BuyingPartyId>
        <ns2:BuyingPartyContactId/>
        <ns2:TransactionalCurrencyCode>USD</ns2:TransactionalCurrencyCode>
        <ns2:TransactionOn>2019-07-09T05:20:46</ns2:TransactionOn>
        <ns2:OrigSystemDocumentReference/>
        <ns2:RequestingBusinessUnitIdentifier>300000181978160</ns2:RequestingBusinessUnitIdentifier>