Sharing availability within Teams chats

Still nothing built into Teams for this as far as I can tell, and Microsoft removed the Outlook mobile version (Send Availability) in July 2026, message center MC1393802. The closest built-in options are in Outlook: the Scheduling Assistant to read off free times, or a Scheduling Poll.

I built a tool for this, so treat this as a disclosure: OpenSlot. Its web app checks your Microsoft 365 free/busy, and colleagues' if you add them, and gives you a list of open times with a copy button, so it pastes straight into a Teams chat. There is also an Outlook add-in that puts the list into an email. https://marketplace.microsoft.com/en-us/product/office/WA200011993 A proper Teams version is in Microsoft's certification queue now, which should remove the copy-and-paste step. I will come back to this thread when it is live.