/chat
Sends a quick message from the search bar.
Where you type it
In search bar only.
Before you start: Teams desktop app only. Your organization can turn some commands off.
Add
The person, then your message.
Example
/chat Dana running 5 minutes late
Microsoft says built-in slash commands work only in Teams desktop. Most work in the message box; /chat works only in the search bar. A real command built into Teams, checked against its own help pages in November 2026. Official help page