Where the limit comes from
Every meeting runs on the host's meeting licence, and each licence has a participant limit. Common tiers are 100, 300, 500 or 1,000 participants, depending on the plan you hold and any large-meeting add-on. Everyone inside counts, including hosts, co-hosts, speakers and producers.
A branded meeting room does not change that number. BrandedRooms hosts the meeting you already run inside your own page, so your licence is still the cap. The room itself does not add a second limit, and it does not lift the first one.
What guests experience when it fills
The people already in the meeting notice nothing. The next person to try to join is turned away with a message that the meeting is full, and they have no way to get in until someone leaves. For a guest who registered and showed up on time, that is a poor experience, and it usually happens at the busiest moment: the start.
Signs you are heading for a full room
Watch the numbers before the day, not during it.
- Registrations well above your licence limit, especially for a free event where turn-up varies.
- A speaker or partner who is promoting the event to their own audience.
- A launch, announcement or celebration that people are excited to see live.
- An internal meeting where attendance is expected, such as a company all-hands.
How to plan for more people
There are three honest options. First, raise the cap: add a larger meeting licence or a webinar licence with your meeting provider before the event. Second, add an overflow: run a livestream of the meeting for anyone beyond the limit, and tell them in advance where to watch. Third, split the audience: run the same session twice, or invite one group live and send the recording to the rest.
Tell registrants early if there is a risk the room fills, and invite them to arrive on time. Being clear is kinder than turning people away at the door.
What to tell guests who could not get in
If people were turned away, reach them the same day. Send an honest note that says the room filled, apologise, and give them the best way to catch up: the replay, the slides, or a seat at a repeat session. Do not pretend nothing happened; people who showed up on time and could not get in will remember how you handled it.
Then use what you learned. If the room filled at the start, the next event needs a larger licence, an overflow or a second session. If it filled late, people who registered early may have arrived after the walk-ins. For internal meetings, ask team leads to watch together in one room where that makes sense, which frees places for remote colleagues who have no other way to join.
How a branded room helps you see it coming
From the Generic Room up, the live attendee list shows who is in, and capacity warnings appear as the room nears the participant limit you set, which should match your licence. That gives the host time to point late arrivals to the overflow or replay before anyone hits a full-meeting message. The host control panel also shows join problems as they happen.