MOBILE PUSH
This action sends the specified push notification to the mobile phones (MobilePhone objects) that are currently in the Context of the process. This action only works in native mobile applications – it doesn’t work in the browser.
Example
FIND ALL MobilePhone CREATE MobilePushNotification WITH MobilePushNotification.Title='Test', MobilePushNotification,Subject='This is my test notification', MobilePushNotification.Sound='default' MOBILE PUSH MobilePushNotification TO MobilePhone
Please see the How To section for more details about push notifications.