How to solve this SonicESB.REST.Fault? - Bad Request (Invali

Dear Friends,

I'm a beginner, learning Sonic ESB, started with Sonic ESB 7.5 and progressed to Sonic ESB 8.0.

I've a systems-integration scenario whereby system (A) has to invoke an RESTful ESB process. This process has to enrich information from external system (B) that implements RESTful API.

I'm using Sonic Connect Service to "expose" the ESB process as a RESTful web-serivce. This process has a STEP (SubProcess) that uses Sonic Connect Service to "invoke" the external API as a RESTful client.

I'm facing a strange problem whereby the process works fine when I invoke it with a Workbench scenario. But the same process fails when I invoke this process via its RESTful interface. On closer analysis, it seems the Sonic Connect Service STEP fails to invoke the external RESTful API - giving a SonicESB.Rest.Fault - StatusCode=400; Bad Request (Invalid Header Name)

On further analysis, I found the following headers that this STEP is trying to interpret and fails. In particular, I think this header is the invalid name - seems like some placeholder replacement didn't happen.   <header  name="{http://www.sonicsw.com/esb}ReplyTo">ENDPOINT:RESTfulESBProject.Connect.AsynchTmp</header>

Please can anyone help me to configure the ESB process that will work and if my hunch is correct, how to solve it. NB: I'm using Sonic ESB 8.0 - "Sonic Connect Service"

Thank you for your time and appreciate your help.

Here is the rest of the tracker message:

<SOAP-ENV:Envelope SOAP-ENC:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
        xsi:schemaLocation="http://schemas.xmlsoap.org/soap/envelope/ http://schemas.xmlsoap.org/soap/envelope"
        xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
        xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
        xmlns:xsd="http://www.w3.org/1999/XMLSchema"
        xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance"
        xmlns:rpc="http://www.sonicsw.com/sonicxq/rpc">
    <SOAP-ENV:Body>
        <xq:trackingMessageInfo event="SERVICE_ENTRY" id="ID:enrichDataProcess:localhost:1323719978282" timestamp="1323719978438"
                xmlns:xq="http://www.sonicsw.com/sonicxq">
            <trackingLocation container="dev_ESBTest" host="localhost" process="invokeRESTAPISubProcess" serviceApplication="ESBToAPIConnect" step="invokeRESTAPISubProcess:invokeAPIStep" topLevelProcess="enrichDataProcess"/>
            <xqMessageHeaders>
                <header name="JMSCorrelationID">RESTfulESBProject:1323717557125:1:</header>
                <header name="JMSRedelivered">false</header>
                <header name="JMSReplyTo">RESTfulESBProject.Connect.AsynchTmp</header>
                <header name="JMS_SonicMQ_ExtendedType">x-sonicmq-multipart</header>
                <header name="JMS_SonicMQ_XQ.isMultipart">true</header>
                <header name="Accept">text/xml</header>
                <header name="BaseURL">http://localhost:3581/RESTfulAPIApp</header>
                <header name="FINAL_MATCH_GROUP">/</header>
                <header name="Method">GET</header>
                <header name="URITemplate">/RESTfulAPIApp/resource/{paramId}</header>
                <header name="URL">http://localhost:3581/RESTfulAPIApp/resource/46efd774-d9cf-42db-bea6-5d32d1a0a5e0</header>
                <header name="asyncReplyForDestinaton">enrichDataProcess:PROCESS</header>
                <header name="paramId">46efd774-d9cf-42db-bea6-5d32d1a0a5e0.xml</header>
                <header name="{http://www.sonicsw.com/esb}ReplyTo">ENDPOINT:RESTfulESBProject.Connect.AsynchTmp</header>
            </xqMessageHeaders>
        </xq:trackingMessageInfo>
    </SOAP-ENV:Body>
</SOAP-ENV:Envelope>