Your Blog is used to send Push Notification to your app. The Headline of the blog post is the actual notification that the user sees.
You can change the date/time of the Blog Post so the notification goes out right away or at some date/time in the future.
Notifications get sent every 20 minutes from our server. That gives you a chance to update the Headline before the notification is sent. Once the notification is sent, you can’t retract it.