Controlling settings, permissions, and membership within Teams and channels
There isn’t a documented Teams setting to automatically turn on channel notifications by default for every new channel a user creates or joins.
What can be configured instead:
- For all channels, change Activity feed behavior for posts and threads:
- In Teams, select Settings and more.
- Go to Settings > Notifications and activity.
- Turn notifications on or off for replies to followed threads and posts, and choose whether they appear in Activity feed and banner or only Activity feed.
- For a specific channel, turn on channel notifications:
- Next to the channel name, select More options.
- Select Channel notifications.
- Turn on notifications for all new messages or posts.
- Choose Activity and banner or Activity.
- For channels using the Threads layout, increase visibility further:
- In Channel notifications, turn on Include thread replies.
- Turn on Follow all new threads if new replies should appear in Followed threads. This does not notify in Activity.
- For important threads, follow them manually:
- Hover over replies or a message in the thread and select Follow or More options > Follow thread.
- Threads are also followed automatically after replying, being @mentioned, or when someone starts a thread from the original message.
For the scenario described, the practical approach is to configure notifications per channel using More options > Channel notifications, and for thread-based channels also enable Include thread replies and Follow all new threads where needed.