You can start a video meeting from Google Chat.
Important: If your organization allows external users to join rooms or group conversations, anyone in the room or group can join a video meeting without permission.
Tip: To make sure you don't join a meeting with an expired code and to better plan for the future meetings you create, check when meeting codes expire. Learn about Google Meet meeting codes.
Start a video meeting from Chat or Gmail
Tip: To learn more about Meet video meetings, go to the Meet Help Center.