creation has been cancelled Error

I am trying to create a new sales order using the following XML (AIF file adapter),

=======================================

<?xml version="1.0" encoding="utf-8"?>

schemas.microsoft.com/.../Message">](http://schemas.microsoft.com/dynamics/2008/01/documents/Message)

{D1F93462-0229-1430-0001-93FAE32B2E4D} MyDomain\MyUser SrcEndpoint LocalEndPt [schemas.microsoft.com/.../Action>](http://schemas.microsoft.com/dynamics/2008/01/services/SalesOrderService/create) schemas.microsoft.com/.../Message">](http://schemas.microsoft.com/dynamics/2008/01/documents/Message) schemas.microsoft.com/.../SalesOrder">](http://schemas.microsoft.com/dynamics/2008/01/documents/SalesOrder) Original EUR 1000001 2011-09-29 Nabeel is testing D30 PO2 ESB-009 1.00 Pcs

========================================

Queue manager is showing the error “creation has been cancelled”. What is the reason for it.