title: IBM watson chatbot for facebook messenger
body: <p>I am trying to implement IBM Watson chatbot into facebook messenger. I am able to verify my webhook. Also, able to receive and send custom messages through facebook to my webhook. </p>
  
  <p>The problem is that i can't receive messages from IBM Watson. IBM Watson is not able to detect my messages and provide appropriate response. Also, can't receive my welcome message from IBM Watson in facebook messenger when chat window is opened. The tutorial which I followed was on youtube and the link is <a href="https://www.youtube.com/watch?v=FdsjS7ZnPLw" rel="nofollow noreferrer">https://www.youtube.com/watch?v=FdsjS7ZnPLw</a></p>
  
  <p>Any suggestion would be a great help. Thanks.  </p>