If your service happens offline, your booking software must do more than display a calendar. It must protect real availability and reduce admin overhead.
Every account should publish one branded link clients can access without friction.
Workdays, working hours, and slot duration should be configurable, with auto-blocking for booked slots.
Owners need delegation without losing control over business-wide operations.
Day, week, and month views are required for execution and planning.
Email, SMS, and push should run based on enabled channels and appointment events.