title: Android - Amazon In-App purchase
body: <p>Need guidance.</p>
  
  <p>I have implemented amazon in-app in my android app, but I don't know what will happen when user's subscription will expire.</p>
  
  <p>Right now, I am keep expiration details on my server hoping that after expiry, subscription will get available to the user.</p>
  
  <p>How will my application get to know about subscription expiry?</p>
  
  <p>Do I have to do anything?</p>