title: Biztalk Distinguished field issue
body: <p>I'm passing a message in biztalk that is resulting in the following suspended message:</p>
  
  <blockquote>
    <p>Inner exception: A failure occurred while evaluating the distinguished
    field MessageStatus against the message part data. The message part
    data does not contain at least one of the nodes specified by the XPath
    expression (listed below) that corresponds to the distinguished field.
    The cause for this error may be that the message part data has not
    been initialized or that the message part data does not conform to the
    message</p>
  </blockquote>
  
  <p>In my orchestration I'm using a map that maps an ID called textID to the textID field in my constructed message "MessageAttempt". I also have a field called MessageStatus with the value set to "Nothing" not to be confused with .</p>
  
  <p>After my map I use a message assignment shape to set the MessageAttempt.MessageStatus element to "Attempted" with the following code:</p>
  
  <pre><code>Message_MessageAttempt.MessageStatus = var_Attempt;
  </code></pre>
  
  <p>I been trying to figure this out all day. I have a similar ConstructedMessage/Transform/Assignment shape on a different branch in my orchestration set up the same and works just fine. I'm not sure what I could be missing. </p>