To use the Microsoft Teams app, you first have to set it up. You need to be an admin of the page or community and have "Manage apps of a page/community" permission to configure the app. 

The app is only available if the Microsoft integration is activated, the correct API permissions have been granted, and users are logged in with Microsoft authentication.

Set up the app

After adding a Microsoft Teams app, you can configure the following settings:

• Name: Give your app a meaningful name that best reflects its topic and use case.
• Activate this app: Activate the app immediately or leave it in deactivated mode. A deactivated app is only visible to page or community admins. Learn more in Activating and deactivating apps.
• URL: By default, the URL is generated from the app's name, but you can change it to something else. Any old links leading to the app won't work anymore after you change it.
• Select a team: Choose a team from your Microsoft Teams environment, such as a work team or project group. You can only see the teams you belong to.
• Select a channel: Select the channel(s) within that team for which you want to show the conversations in the MS Teams app. You can select one or more channels, allowing users to jump between conversations in the app.