How do I change the number of event attendees after booking?

We know that you may not have the final attendee count when booking your event, and that’s okay! We just need the final attendee count when your final payment is due, which is usually nine days before your event for non-shipping events. For shipping events, your attendee count is based on the number of addresses you provide. Please don’t hesitate to reach out with any questions.

Just a reminder, you can reach our Event Concierge team any of the ways below:

• Reach out on our site instant chat. The chat icon can be found in the bottom right corner.

• Call 650-731-5902.

• Email sales@boombox.events.

• Schedule a 15-minute event consultation instantly on our calendars!

• Ask a question on any event page, by clicking “Inquire Before Booking.”