Why a customer cannot book a slot
The most common reasons a booking attempt fails.
They see no available slots — why?
Check that at least one staff member offers the service AND has hours set for the day. The calendar only shows slots when both conditions are true. Open Bookings → Services to confirm assignments.
They click a slot and get an error.
The slot was probably taken seconds before. Refresh the page; the calendar revalidates in real time. If the error persists, the service may have a buffer or minimum-notice rule that excludes that slot.
Their timezone is different from mine.
That is expected — customers see times in their own timezone. The slot they pick is stored in the staff member’s timezone in your dashboard.
They booked but did not get a confirmation email.
Check spam first. If still missing, open Bookings → Settings → Notifications and confirm confirmation emails are turned on. You can resend manually from the appointment’s detail page.