Notifications for a Channel
This is how you follow or subscribe to a channel's activities. It is turned off by default.
Turning it on will mean you will get a notification everytime someone posts in that channel. We recommend this for active channels, like Dynamics (LMS) and Sitecore in the IT Resource Center team.
1. Hover over the channel and click the More options 
2. Change between Off, Banner and feed, Only show in feed. Banner means you will get the little pop up at the bottom right of your computer. Feed means it will be a red number on your application and will show up in Activity in Teams. We highly suggest both for maximum visibility.
3. Make sure to "Include all replies" and click "Save."
4. Do this for each channel you would like to receive notifications on.