Notifications are useful so you can keep up with activity even when you aren't using our apps. You can receive push notifications on your mobile devices, browser notifications on desktop and email notifications for important updates.
By default, you'll get a push notification every time you are mentioned by another user and every message in a direct message and an email notification every time you are added to a new space, mentioned by another user, or the first time you get a direct message from another user. You can change your user settings to turn on or off all push and email notifications and you can modify your space settings to receive notifications for all, just mentions of your name or no notifications.
Visit these pages for more information about notifications and awareness.