Twilio's message scheduling capability allows users to automatically send appointment reminders via text or other channels at predetermined times, reducing no-shows and ensuring patients receive the care they need. To get started, a free Twilio account is required, along with review of the docs for message scheduling capabilities. An example using Airtable as a backend demonstrates how to integrate Twilio's messaging API into an appointment scheduling system, allowing users to personalize messages and schedule follow-up reminders. The setup involves calling the Twilio Messaging API and providing information such as To, MessagingServiceSid, Body, Status, and Delivery Date/Time in ISO 8601 format. Once a message is scheduled and a response is received from Twilio, it can be populated into an Airtable database with relevant information, including appointment ID, message SID, patient phone number, appointment date/time, message delivery date/time, status, and message body. A flow for appointment check-in and canceling upon receiving a "missed appointment" text has also been set up to ensure seamless integration with existing EHR systems.