You can set an attendee limit for the number of spots available for your event during the creation of a new event or by editing an existing event.
To limit the number of spots for your event, follow these steps:
From the top navigation menu, select Classes (or the term you used for your events).
Create a new event or select an existing event that you would like to assign a limited amount of spaces to.
Go to Step 5 - Filters & Settings and check the box labelled Limit the number of spots available. Once you do, you will get an option to fill in the amount of available spots for this event.
If an event sells out of available spots, any new and interested participants will not be able to register. Instead they will see a Sold Out label and a message that says there are no more spots available for this event.