Note: make sure you are logged in and in the correct event
This article explains how to use the push notifications in the Event App.
Click on 'Manage' the event app
Choose to send a push notification. The push notification will be sent to all phones that make use of your Event App and can only be viewed once. It will not be saved somewhere.
Note! This only works if the Event App is published already.
How the message appears, depends on the phone the participants are using and how these phones support notifications. The Event App supports Android and IOS phones.