To add a bot, tab, connector, or messaging extension to Teams, click Store in the bottom-left corner of the app.
Once you're in the Store, you can browse available apps by category or by capability (bots, tabs, connectors, messaging). If you already know which app you'd like to add, find it using the search bar.
Note: Team owners can restrict who can add apps to a team.
Add a tab
To add a tab outside the Store, click Add a tab at the top of your channel or chat. Select the tab you want from the tab gallery.
Add a connector
To add a connector outside the Store, go to the channel, click More options > Connectors, then choose a connector from the menu.
To add a bot, tab, connector, or messaging extension to a team, go to the desktop or web app.