To create a simple notification go to Communiction -> Simple notification and click Create notification button.
Name – helps us identify our notification in system.
Send date – we can set when notification will be sent.
Application – we choose in which application, notification should be displayed.
Notification – we set notification content.
GCM account – we choose GCM account.
Usage frequency – Specifies which group, in terms of frequency of use of the application we send notification.