title: FCM with AWS SNS
body: <p>I am using <code>AWS</code> resources for my android project, I am planning to add push notification service for my project with <code>AWS SNS</code>.there are few questions bothering me much. I did not find any questions regarding these, except one or two but with unclear explanations.</p>
  
  <p>1.Does <code>AWS</code> support <code>FCM</code>? <code>SNS</code> work with <code>GCM</code>. But Google recommends to use FCM instead of <code>GCM</code>. I did not find <code>AWS</code> supporting <code>FCM</code>.</p>
  
  <p>2.Do <code>AWS</code> store messages (or data) into their databases even after sending push notifications?</p>
  
  <p>3.I tried putting FCM api key in SNS application platform, it is showing invalid parameters why?</p>