title: Sage sdata web service issue
body: <p>I am working on Sage SData integration. Unfortunately, there is a problem in sending data to the server. I am able to retrieve data and delete contract but when I add new contract through <code>POST</code> or update through <code>PUT</code>, it gives an error:</p>
  
  <blockquote>
    <p>error ApplicationDiagnosis Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection</p>
  </blockquote>
  
  <p>Does any one have a PHP or JSON example of adding a new contract?</p>