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Extend Teams apps across Microsoft 365
With the latest releases of Microsoft Teams JavaScript client library (TeamsJS version 2.0.0 and later), app manifest (previously called Teams app manifest) (version 1.13 and later), and Teams Toolkit, you can build and update Teams apps to run in other high-usage Microsoft 365 products and publish them to the Microsoft commercial marketplace (Microsoft AppSource) or your organization's private app store.
Extending your Teams app across Microsoft 365 provides a streamlined way to deliver cross-platform apps to an expanded user audience: from a single codebase, you can create app experiences tailored for Teams, Outlook, and Microsoft 365 app environments. End users don't have to leave the context of their work to use your app, and administrators benefit from a consolidated management and deployment workflow.
The Teams app platform continues to evolve and expand holistically into the Microsoft 365 ecosystem. Here's the current support of Teams app platform elements across Microsoft 365 (Teams, Outlook, and Microsoft 365 as application hosts):
| Teams app features | App manifest element | Teams support | Outlook support | Microsoft 365 app support | Notes |
|---|---|---|---|---|---|
| Tabs-personal scope | staticTabs |
Web, Desktop, Mobile | Web, Desktop, Mobile (Android, iOS) | Web, Desktop, Mobile (Android, iOS) | Channel and group scopes aren't supported for Microsoft 365. For more information, see Teams JavaScript client library. |
| Message extensions-search-based | composeExtensions |
Web, Desktop, Mobile | Web, Desktop | - | Action-based not yet supported for Microsoft 365. For more information, see troubleshooting. |
| Link unfurling (including Stage View) | composeExtensions.messageHandlers |
Web, Desktop | Web, Desktop | - | See notes on link unfurling and Stage View |
| Adaptive Card Loop components | composeExtensions.messageHandlers |
Web (preview), Desktop (preview) | Web (preview), Desktop (only for new Outlook preview) | - | Viewable (not composable) in Teams/Outlook mobile preview (iOS, Android). See notes. |
| Stage View | composeExtensions.messageHandlers |
Web, Desktop, Mobile | Web (preview), Desktop (preview) | - | Viewable/actionable (not composable) in Outlook mobile preview (iOS, Android). See notes. |
| Office Add-ins (preview) | extensions |
- | Web, Desktop | - | Only available in devPreview app manifest version. See notes. |
Enrollment to Microsoft 365 Targeted Release and Microsoft 365 Apps update channel requires admin opt-in for the entire organization or selected users. Update channels are device specific and apply only to installations of Microsoft 365 running on Windows.
Note
For more information on admin guidance and options for managing your extended Teams app, see Teams apps that work on Outlook and Microsoft 365.
For guidance about the app manifest and TeamsJS versioning guidance, and further details about current Teams platform capability support across Microsoft 365, see the Teams JavaScript client library overview.
Personal tabs and messaging extensions in Outlook and Microsoft 365 app
Reach your users where they are, right in the context of their work by extending your web app as a Teams personal tab application that also runs in both Outlook and Microsoft 365 app. Teams personal tabs built and hosted with SharePoint Framework (SPFx) version 1.16 and later are also supported in Outlook and Microsoft 365 app.
On mobile, you can test and debug your Teams personal tab running on Microsoft 365 for iOS and Android app, in addition to Outlook for iOS and Android app.
You can also extend your search-based Teams message extensions to Outlook on the web and Windows desktop, enabling your customers to search and share results through the compose message area of Outlook, in addition to Microsoft Teams clients.
Link unfurling works in Outlook web and Windows environments the same way it does in Microsoft Teams without any further work than using the app manifest version 1.13 or later. You can also unfurl links with cards that launch Stage View.
Build your app with the latest app manifest and Teams JavaScript client library to benefit the latest consolidated Microsoft 365 app development process. Then deliver a streamlined deployment, installation, and admin experience for your customers that expands the reach and usage of your app.
Use app manifest across Microsoft 365
With an aim toward simplifying and streamlining the Microsoft 365 developer ecosystem, we're continuing to expand the app manifest into other areas of Microsoft 365 with the following.
Office Add-ins (preview)
You can now define and deploy Office Add-ins in the developer preview version of the Microsoft Teams app manifest. Currently, this preview is limited to Outlook Add-ins running on subscription Microsoft 365 for Windows app.
For more information, see app manifest for Office Add-ins (preview).
Microsoft commercial marketplace submission
Join the growing number of production Teams apps in the Microsoft commercial marketplace (Microsoft AppSource) store with expanded support for Outlook and Microsoft 365 audiences. The app submission process for Teams apps enabled for Outlook and Microsoft 365 is the same as for traditional Teams apps. The only difference is to use app manifest version 1.13 in your app package, which introduces support for Teams apps that run across Microsoft 365.
After your app is published as a Microsoft 365-enabled Teams app, your app will be discoverable as an installable app in the Outlook and Microsoft 365 app stores, in addition to the Microsoft Teams Store. When running in Outlook and Microsoft 365 app, your app uses the same permissions granted in Teams. Teams admins can manage access to Teams apps across Microsoft 365 for users in their organization.
For more information, see publish Teams apps for Microsoft 365.
Next step
Set up your dev environment to build Teams apps for Microsoft 365:
See also
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