+
+
+
+
How OTP verification works
01
Customer requests a booking
They enter their email as usual — the flow stays simple.
02
A 6-digit code arrives
A one-time verification code is sent to their inbox automatically.
03
The booking is confirmed
Only verified customers lock the slot — abandoned requests expire on their own.
04
No-shows drop
Verified contacts mean fuller calendars and fewer empty chairs.
Why OTP verification works
What you miss without OTP verification
01
Significantly reduce no-show rates with verified contact information
02
Higher no-show rates from unverified bookings
03
Automatic 6-digit code sent to customer's email
04
No way to confirm customer email addresses are valid
05
Expired verifications are automatically cancelled
06
Wasted time slots from fake or abandoned bookings
07
Simple for customers — just enter the code from their email
08
Loss of revenue from empty appointment slots
+
+
+
+
Frequently Asked Questions
Find answers to common questions about Rezzervo and how it helps your business.
What is OTP verification in Rezzervo?
One-time passcodes sent to the customer's phone confirm the number is real before a booking is accepted, blocking fake reservations.
How does OTP reduce no-shows?
Verified phone numbers plus automatic reminders reach real customers reliably, cutting fake bookings and forgotten appointments.
When is the code requested?
During the booking flow, before confirmation. The customer enters the short code once and the reservation completes immediately.
Do customers need an app or account?
No. Codes arrive by SMS and work on any mobile phone with no app install or Rezzervo account required.
Can I require OTP only for some services?
Yes. Enable verification where abuse hurts most — high-value, long, or frequently no-showed services — and keep quick bookings frictionless.
What if a customer never receives the code?
They can request a resend, and staff can verify or adjust the booking manually from the dashboard if a number is unreachable.
Does OTP replace reminders?
No, they work together: OTP verifies the contact up front, and email reminders keep the appointment top of mind afterwards.
Is my customers' phone data safe?
Yes. Numbers are used only for verification and booking communication under your privacy policy and GDPR process.
Does OTP work for international numbers?
Yes. The phone input includes country-code selection so international customers verify just as easily.
Will OTP annoy genuine customers?
Entering a short code takes seconds and most customers accept it as a trust signal — especially when you explain it protects their slot.
Rezzervo
Online booking for local services
Rezzervo