Create a channel from Chat or Teams:
- On the left side of the app, select Chats. If using the separate view, select Teams.
- Select New items from the dropdown at top of your list of chats and channels.

- Select New channel.

- Select a team to choose a team to host your channel.
- Fill in some quick details about your channel by choosing a name, entering an optional description, and a channel type. This is where you'll choose to make your channel standard, private, or shared.
Create a channel from a team name:
- Select either See all of your teams or See all your teams and channels to see a list of the teams you belong to.
- Locate the team you'd like to add a channel to.
- To the right of the team name, select More options > Add channel.
- Fill in some quick details about your channel by choosing a name, entering an optional description, and a channel type. This is where you'll choose to make your channel standard, private, or shared.
When you create a new team or private channel in Microsoft Teams, a team site in SharePoint is automatically created. To edit the site description or classification for this team site, go to the corresponding channel’s settings in Microsoft Teams. Learn more about managing Microsoft Teams connected teams sites.
Manage private channel creation
As a team owner, you can turn on or turn off the ability for members to create channels.
- Find the team you want to edit, and select More options.
- Select Settings > Member Permissions.
- Choose whether users can create, update, or delete channels.
Edit, delete, hide, or leave a channel
Once you delete a channel, you also lose its entire conversation history. Channels can be restored within 30 days, but no new channels can be created with the same name as the deleted channel within that 30-day window. The OneNote sections associated with a deleted channel will still show up on your team's SharePoint site.
Select More options next to the channel name. Then use the menu to edit, delete, hide, or leave the channel.