Last updated: February 27, 2026
FillSlots Appointment Notifications — an SMS-based service that notifies waitlisted clients when cancelled appointment slots become available.
FillSlots helps appointment-based businesses (barbers, salons, trainers, dentists, etc.) fill cancelled slots by sending SMS notifications to their waitlisted clients. When a slot opens up, eligible waitlist members receive a text message and can reply to claim the appointment.
Message frequency varies depending on appointment cancellations. You may receive:
Typical frequency is 1-5 messages per month, but may vary.
Message and data rates may apply. Please contact your mobile carrier for details about your text messaging plan. FillSlots does not charge end users for receiving SMS messages, but standard carrier rates apply.
By providing your phone number and joining a business's waitlist through our platform, you consent to receive SMS appointment notifications from that business via FillSlots. Consent is not a condition of any purchase.
You can stop receiving messages at any time by replying STOP to any SMS message from FillSlots. You will receive a one-time confirmation message acknowledging your opt-out. After opting out, you will not receive any further messages unless you re-subscribe.
For help, reply HELP to any SMS message from FillSlots, or contact us at: support@fillslots.com
FillSlots SMS notifications are supported on all major US carriers including AT&T, Verizon, T-Mobile, Sprint, and most regional carriers. Carriers are not liable for delayed or undelivered messages.
For business account holders:
Your privacy is important to us. Please review our Privacy Policy for information about how we collect, use, and protect your personal data.
We may update these terms from time to time. If we make material changes, we will notify affected users. Continued use of the service after changes constitutes acceptance of the updated terms.
Questions about these terms? Contact us at: support@fillslots.com