Workspace ONE Notifications in Intelligent Hub – a real-life use case

A few weeks ago, like many others, we were hit by an O365 Exchange outage. What does usually an admin do, when something is down? -Send an email! But what do you do when email is also down? Ring/Text everyone? Blast it in Teams/Skype/Slack/etc? Pigeons? This is what happened in our case with Workspace ONE Notifications API...