What happens to bookings if we change the event dates?
Existing bookings stay exactly where they are, even if you remove the date or time they were booked on. Nothing is cancelled or moved for you, and families aren't emailed.
Moving bookings to a new date
If bookings are left on a date that's no longer part of the event, the Dates and Times settings page shows a warning with a link to the rescheduling tool. It moves every booking and staff break from one date to another in one go, lets you choose what happens when a time on the new date is already full, and can email the families affected. See rescheduling bookings to a different date for the details.
Changing times on the same date
If you shorten a time block, bookings outside the new times stay in place. Families can't make new bookings in those times, but you'll need to cancel or rebook the existing ones yourself from the Bookings page.
Reminders
Reminder emails follow the event's dates. When you add a date, it gets its own reminder at the default time. When you remove a date, its reminder stops being sent, so families are never reminded about a day that's no longer part of the event. Any reminder times you've already changed are kept.