A Team Owner has elevated permissions compared to Team Members. As a Team Owner you can:
Add or remove members.
Promote members to owners or demote owners to members.
Manage team settings (channels, permissions, mentions, etc.).
Configure apps, connectors, and tabs.
Manage guest access.
Delete the team. (Only a Team Owner or Microsoft 365 Admin can delete a team)
In the teams list, go to the team name and select More options
> Add members.
Type in the name or email address of someone you want to add.
Note: If the person is outside of your organization, type in their email address. Select the pencil icon to add a display name everyone will recognize. The guest will receive an email inviting them to join the team.
Select Add.
In the teams list, go to the team name and select More options
> Manage team.
Under Members, select the X to the far right of the name of the person you'd like to remove.
In the teams list, go to the team name and select More options
> Manage team.
In the Members tab, under Role, select the down arrow and change Member to Owner.
Go to the team name and select More options
> Manage team.
In the Channels tab, select Auto-favorite for any channels you want to make sure show up in everyone's channel list.
Note: You can favorite up to 10 channels for your team.
Go to the team name and select More options
> Manage team. From there, you can access your team Settings tab, which lets you:
Change the team picture.
Set member permissions (like allowing them to create, update, or delete channels and tabs).
Enable @team or @[team name] mentions in a channel.
Set permissions for guests.
Enable team members to send GIFs, emoji, and stickers.
You can toggle off:
Creating or deleting channels.
Adding or removing tabs, connectors, or bots.
Editing messages.
Guests can be added by email.
Permissions for guests are more limited (they can’t create channels by default).
Control what guests can do under Settings → Guest permissions.
Go to the team name and select More options
> Manage team.
In the Apps tab, you can manage the apps your team uses.
Select Go to store to find and install a new app.
Select the 'manage' icon
at the bottom of the teams list.
Select More options
on the far right of the team name.
Select Archive Team.
Note: The conversations and files in the team become read-only once you archive it. You’ll still be able to search through it for stuff you need—you can even keep it as a favorite.
Files in a team are stored in SharePoint.
Each channel has its own folder in SharePoint.
To manage permissions or recovery:
Go to Files tab → Open in SharePoint.
Use SharePoint controls for versioning, permissions, or restoring deleted files.