title: FCM | Multiple Sender ID
body: <p><strong>Moving to FCM from GCM.</strong></p>
  
  <p>In GCM, we can call getToken() method for multiple sender ids as below:</p>
  
  <pre><code>String senderIds = "112233445566,889922338899";
  String token = instanceID.getToken(senderIds,
                          GoogleCloudMessaging.INSTANCE_ID_SCOPE, null);
  </code></pre>
  
  <p><strong>Q1</strong> - After moving into FCM, will it remain same or I need to make any changes in order to get the token for multiple sender ids?</p>
  
  <p>From <a href="https://stackoverflow.com/questions/37974658/how-to-put-multiple-project-number-sender-id-in-google-services-json">this</a> reference, I know that I can call getToken("senderIds1", "FCM") for each sender Id, but I want minimum code changes while moving into FCM. </p>
  
  <p><strong>Q2</strong> Will below work for FCM (same like GCM) or I have to call  <strong>getToken("senderIds1", "FCM");  getToken("senderIds2", "FCM")?</strong></p>
  
  <pre><code>getToken("senderIds1, senderIds2", "FCM") 
  </code></pre>