Updated June 25, 2026: We have updated the timeline. Thank you for your patience.
[Introduction]
Microsoft Teams is introducing slash (/) commands for apps in the compose box across chats and channels. This change provides a standardized way for users to invoke app functionality directly from the compose box and receive responses inline.
This message is associated with Microsoft 365 Roadmap ID 495002.
[When this will happen:]
- Targeted Release (Worldwide): We will begin rolling out in early July 2026 (previously late May) and expect to complete by early July 2026 (previously late June).
- General Availability (Worldwide): We will begin rolling out in early August 2026 (previously early July) and expect to complete by late August 2026 (previously late July).
[How this affects your organization:]
Who is affected:
- All Microsoft Teams users
- App developers publishing apps in the Teams Store
- Users can type “/” in the compose box to discover and invoke supported app commands.
- Apps can return responses as Targeted Messages (visible only to the user who invoked the command).
- The feature is available by default when apps support slash commands
- No changes to existing admin policies or permissions.
- Apps will only appear in slash commands if their developers update the app manifest to define supported commands.
[What you can do to prepare:]
- No action is required.
- Review internal app inventory and confirm continued availability of apps that adopt slash commands.
- Update internal guidance if you provide documentation on Teams app usage.
[Compliance considerations:]
Introduces a new targeted messaging pattern (user-only visibility) within chats and channels.