Set an appointment for the desired date and time. Select the client ➣ Service. In the last step, you will see “SMS Alerts for Client“. Here you can activate and deactivate notifications. Save.
Attention!
Once you modify the SMS alert sending model, it will be retained for the appointments you set later. To revert to the original model, set an appointment at least 24 hours later, ensuring that you check all 3 SMS alerts in the last step.