How "minimum time before booking" works

This refers to how far in advance a customer can make a booking.  

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For example, if you'd like to set the minimum time before booking to 24 hours:

A customer won’t be able to book a same-day appointment. The earliest they will be able to book an appointment is 24 hours from the time they visit your site to book.

This is particularly important if your business does not want to accept same-day bookings.

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The default minimum time before booking is zero minutes, meaning customers can schedule bookings immediately with providers.

To update: Settings --> Configuration --> Min. booking notice