Waitlist and recurring appointments

**Waitlist:** when a customer's preferred time is full they can join the waitlist for a service. The moment a matching appointment is cancelled, the platform automatically offers the freed slot to the first waiting customer whose desired window covers it and emails them a booking link. Watch who's waiting under **Scheduling → Waitlist**.

**Recurring appointments:** services can allow recurrence (weekly, every-other-week, or monthly). A recurring series materializes real appointment occurrences on a rolling ~8-week horizon, so each visit is its own appointment — independently reschedulable, cancellable, and remindable — while the series keeps generating future ones until its end date or occurrence count is reached.