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Acuity Double Booking Appointments

Ongoing Web Updated October 21, 2026

Quick answer

Double bookings happen when outside calendars aren't syncing, two calendars sync with each other, or no resource limits are set. Fix the sync and use resources to cap simultaneous bookings.

Most likely fix: Repair calendar sync.

Symptoms

Two clients book the same slot, or duplicate appointments appear in your calendar.

Why it happens

  • External calendar sync disconnected, so busy times aren't blocked
  • Two outside calendars also syncing with each other, or two team members syncing the same calendar
  • No resources set to limit simultaneous appointments

How to fix it

Try these in order — the most common fix is first.

  1. 1. Repair calendar sync

    1. Open Sync with Other Calendars
    2. Reconnect any calendar that shows an error

  2. 2. Remove duplicate sync paths

    1. Stop one of two outside calendars that sync with each other
    2. Make sure only one team member syncs a shared calendar

  3. 3. Add resources

    1. Create a resource for each room/provider
    2. Assign it to appointment types to cap bookings at the same time

This guide also covers

  • acuity double booking
  • acuity duplicate appointments
  • acuity booked same time twice

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