Book and confirm clinic appointments with WhatsApp, Google Calendar, and Gmail

Quick overview Automate clinic appointment booking end to end. Patients submit a request via webhook, the workflow generates a unique Booking ID, routes online consultations to Google Meet and offline ones to the clinic address, then notifies both patient and doctor via Gmail and WhatsApp. How it works 1. A patient submits a booking request via webhook containing name, email, phone, date, time, and consultation type — online or offline. 2. The workflow extracts all fields and generates a unique Booking ID in the format CLN-YYYYMMDD-XXXXXX for tracking. 3. The consultation type is checked — if online, a Google Meet link is generated and attached to the calendar event. 4. If offline, the clinic physical address is used instead of a meeting link. 5. A confirmed appointment is created in the doctor Google Calendar with full patient details attached. 6. The patient receives a confirmation email via Gmail and a WhatsApp message via Twilio with the Booking ID and appointment details. 7. The doctor receives a full appointment notification via Gmail, then 24 hours before the appointment the patient is automatically sent a reminder via email and WhatsApp. Setup 1. Connect your Google Calendar credential in n8n and replace YOURDOCTORCALENDARID with your Calendar ID found in Google Calendar Settings. 2. Connect your Gmail credential in n8n — used for patient confirmation, doctor notification, and reminder emails. 3. Sign up at twilio.com, enable WhatsApp Sandbox, connect the Twilio credential in n8n, and replace YOURTWILIOWHATSAPPNUMBER with your sandbox number in format whatsapp:+14155238886. 4. Replace YOURDOCTOREMAIL in the Notify Doctor via Email node with the doctor actual email address. 5. Replace YOURCLINICADDRESS in the Create Offline Calendar Event and Store Offline Event Data nodes with your clinic physical address. 6. Test the workflow by sending a POST request to the webhook URL with this body: name, email, phone, date, time, and consultationtype set to online or offline. Requirements - Google Calendar account connected via OAuth2 - Gmail account connected via OAuth2 - Twilio account with WhatsApp Sandbox enabled — free tier available at twilio.com - Publicly accessible webhook URL — activate the workflow before testing Customization - Add multiple doctors by routing to different Google Calendars based on specialization using an additional IF node - Add a Stripe payment node before calendar booking to collect consultation fees upfront - Add a Google Sheets node after doctor notification to maintain a full patient booking log - Replace Gmail with SendGrid via HTTP Request node for branded transactional emails - Extend the reminder to also send 1 hour before the appointment for online consultations by adding a second Wait node