Go to the meeting controls and click More options>Start recording.
Everyone in the meeting is notified that the recording has started. The meeting notification is also posted to the chat history.
You can't make multiple recordings of the same meeting at the same time. If one person starts recording a meeting, that recording will be stored on the cloud and available to all participants.
To stop recording, go to the meeting controls and click More options>Stop recording
The recording is then processed (which could take a while) and saved to Microsoft Stream, and then it'sready to play.
The person who started the recording receives an email from Microsoft Stream when the recording is available. It also shows up in the meeting chat—or in the channel, if you’re meeting in a channel.