Setting an RSVP Limit for Simple or RSVP Registration
To cap the total number of guests for events using Simple or RSVP registration:
Navigate to your Event Dashboard.
Click on Setup > Registration > Setup.
Scroll down to the Event Capacity section.
Enter the maximum number of guests allowed.
Confirm your final registration date.
Click Update Settings to save your changes.
Once the capacity is reached, additional guests will be unable to RSVP and will receive a "Registration is closed" message