title: How to use Google Cloud Connection Server to send upstream GCM message
body: <p>I am trying to send an upstream message from device to cloud using the new Cloud Connection Server feature of Google Cloud Messaging. I am using the example code in Getting Started guide.<br>
  <a href="http://developer.android.com/google/gcm/gs.html" rel="nofollow">http://developer.android.com/google/gcm/gs.html</a>  </p>
  
  <p>I am able to set up the client side and am getting the registration ID. But when I send the 
  message to the server nothing happens. I am not sure if I need to do some setup at the server end.My basic server requirement is to receive the message from the client and send a response back. I am using a Java based backend server.I could not find anything concrete in the documentation regarding server side set up.</p>
  
  <p>Can anyone please help ?</p>