Online Booking

How to use a waitlist to fill last-minute cancellations

A waitlist captures client interest when your schedule is full, then helps you fill cancellations quickly. When a slot opens, you contact waitlisted clients who wanted that time. The key is capturing preferences (dates, times, services) so you can match cancellations efficiently.

Why a waitlist matters

Cancellations are inevitable, but empty slots don't have to be. A waitlist helps you:

  • Capture demand when you're fully booked instead of turning clients away
  • Fill last-minute cancellations with people who actually want that time
  • Reduce revenue loss from empty appointment slots
  • Show clients you value their business even when unavailable

What to capture on your waitlist

A useful waitlist entry includes:

  • Client contact details (so you can reach them quickly)
  • Preferred dates and time ranges (not just "anytime"—get specifics)
  • Services they want (so you know how long a slot needs to be)
  • Team member preference if applicable
  • Notes for any special requirements

The more specific the preferences, the easier it is to match waitlist entries with cancellations.

When to add someone to the waitlist

  • When a client calls but no suitable appointments are available
  • When online booking shows no availability for their preferred times
  • When a regular client wants their usual slot but it's taken
  • When someone enquires about a popular service during busy periods

Working the waitlist when cancellations happen

When a slot opens up:

  1. 1Check the waitlist for entries matching that date and time range
  2. 2Contact the best match first (consider how long they've been waiting)
  3. 3Give them a reasonable window to respond (a few hours, not days)
  4. 4If they can't make it, move to the next matching entry
  5. 5Convert the waitlist entry to an appointment once confirmed

Speed matters for same-day cancellations. Text messages typically get faster responses than emails or phone calls.

Keeping your waitlist clean

An outdated waitlist is useless. Regularly:

  • Remove entries for dates that have passed
  • Mark entries as "booked" when you convert them to appointments
  • Follow up with people who've been waiting a long time
  • Archive cancelled entries so you can track patterns

Online waitlist joining

Some booking systems let clients join the waitlist themselves when no appointments are available online. This:

  • Captures interest without requiring a phone call
  • Works outside your business hours
  • Automatically collects the information you need
  • Sends you a notification so you know someone is waiting

If your software supports this, consider enabling it for high-demand services.

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