title: SystemTriggerType SmsReceived Task is not working in windows phone 8.1 universal app
body: <p>I have created a simple task to be triggered when sms is received in windows phone 8.1 universal app but it is not working? any one else has the same issue? here is my code.</p>
  
  <pre><code>await BackgroundExecutionManager.RequestAccessAsync();
  
          BackgroundTaskBuilder taskBuilder = new BackgroundTaskBuilder();
          taskBuilder.Name = "SMSTask";
  
          //GattDeviceService.FromIdAsync();
          //GattCharacteristicNotificationTrigger trigger = new GattCharacteristicNotificationTrigger(GattCharacteristic);
  
          SystemTrigger systemTrigger1 = new SystemTrigger(SystemTriggerType.TimeZoneChange, false);
          BackgroundTaskBuilder taskBuilder1 = new BackgroundTaskBuilder();
          taskBuilder1.Name = "TestTask";
          taskBuilder1.SetTrigger(systemTrigger1);
          taskBuilder1.TaskEntryPoint = typeof(TestTask.TestTask).FullName;
          taskBuilder1.Register();
  
          SystemTrigger systemTrigger = new SystemTrigger(SystemTriggerType.SmsReceived, false);
          taskBuilder.SetTrigger(systemTrigger);
  
          taskBuilder.TaskEntryPoint = typeof(SMSTask.SMSTask).FullName;
          taskBuilder.Register();
          lblMessage.Text = "both task registered";
  </code></pre>
  
  <p>In above code there are 2 task one is for timezone which is working fine other is for sms receive which is not working when I receive sms in my mobile device</p>