What do my attendees see when I hit capacity?
If an attendee attempts to watch a full webinar, they will be taken to the registration page and see a message, which will read:"We're Sorry, this webinar is now full. Please pick a future time!"

Attendee Capacity - is something to consider when marketing your webinar event links.
Especially with one time, or daily scheduled events. A repeat schedule for minimum (1) advanced date is recommended to setup in case you do not have any good estimate of attendees