Message Mapping issue in Multi-Mapping

Hi Folks,

    I am encountering a "Message Root-Tag" error in one of my scenarios. I have a proxy to Soap scenario. I am have implemented a multi mapping, but I am having the above said error. I followed the below blog but still the error occurs.

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/90dcc6f4-0829-2d10-b0b2-c892473f1571?overridelayout=t…

the below is the structure I see when I test the interface mapping in the ESR

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

<ns0:Messages xmlns:ns0="http://sap.com/xi/XI/SplitAndMerge">

   <ns0:Message1>

      <ns1:TransactionalData_ECC xmlns:ns1="http://Softel.com/xi/SOFTEL_SC_PLANNING/GPEO/TransactionalData">

         <Header_Data>

            <RecipientId/>

            <ControlNumber/>

            <MessageId/>

            <DocumentType/>

            <DateSent/>

         </Header_Data>

         <Body_Data>

            <DocumentType/>

            <Version/>

            <Date/>

            <Attachments>

               <Attachment>

                  <Href/>

                  <FileName/>

                  <FileType/>

                  <FileCreateDate/>

                  <FileSize/>

               </Attachment>

            </Attachments>

         </Body_Data>

      </ns1:TransactionalData_ECC>

   </ns0:Message1>

</ns0:Messages>

The Below is the payload I get in the runtime when I execute the proxy

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

  <nm:TransactionalData_ECC xmlns:nm="http://Softel.com/xi/SOFTEL_SC_PLANNING/GPEO/TransactionalData" xmlns:prx="urn:sap.com:proxy:FI0:/1SAI/TAS097D92A93F9E8143C96A:731">

  <Header_Data>

  <RecipientId>SOFTELINC</RecipientId>

  <ControlNumber>0000000000000001</ControlNumber>

  <MessageId />

  <DocumentType>SoftelOrder</DocumentType>

  <DateSent>20140119204641</DateSent>

  </Header_Data>

  <Body_Data>

  <DocumentType>SoftelOrders</DocumentType>

  <Version>1.0</Version>

  <Date>20140119204641</Date>

  <Attachments>

  <Attachment>

  <Href>Wi1234uKjYTmbx2{ReJ</Href>

  <FileName>E2Open_Attachment_20140119204641</FileName>

  <FileType>.txt</FileType>

  <FileCreateDate>20140119204641</FileCreateDate>

  <FileSize>200</FileSize>

  </Attachment>

  </Attachments>

  </Body_Data>

  </nm:TransactionalData_ECC>

Can somebody let me know where I am going wrong