Enable GCM for
      the application connection by obtaining an API Key and enabling GCM with
      it.
- Go to the
               Android Developer website and obtain the necessary API key.
 
- In SAP Control Center, add a GCM notification in the
                  Push Configuration for the application. 
 For details, see  Android Push Notification Properties in SAP Control Center
                for SAP Mobile Platform .
 
- Use the generated key to configure API key. 
 
- Once the application has been registered and activated, check the connection for
               the application and ensure that:
- Enabled is set to
                     true.
 
- Registration ID and Sender ID
                  are set to a value you'd expect.