WhatsApp Flows let patients, clients, and customers book appointments directly inside WhatsApp — no website redirect, no app download, no phone call. This guide covers every component: date picker, time slot selector, doctor/service selection, and confirmation message. Built for India's clinics, salons, service businesses, and consultants.
A WhatsApp Flow for appointment booking collects all required information from the user inside a single WhatsApp conversation — without any redirect. Here's what the finished Flow contains:
Dropdown or radio buttons — customer picks what they need
Calendar component — shows only available dates (no weekends, no holidays)
Available slots for chosen date — dynamically fetched from your calendar system
Name, age, reason for visit — short text fields inside the Flow
Summary of booking before final submit — reduces errors
Utility template sent automatically after Flow completion
💡 WhatsApp Flows are only available through the WhatsApp Business Cloud API — not the WhatsApp Business App. You need a BSP like WA.Expert to create and publish Flows.
Everything above happens inside WhatsApp — no browser, no app, no redirect.
WA.Expert's Flow builder is no-code — drag components, set rules, connect to your calendar system via webhook. Here's the complete build sequence.
WA.Expert dashboard → Flows → New Flow → choose template "Appointment Booking" or start blank. Name your Flow (e.g., clinic_appointment_booking).
Drag a Dropdown component. Add your service list: General Consultation, Specialist, Procedure, etc. Label: "What do you need today?"
Drag a Date Picker component (shows calendar). Set min date = today + 1 day. Connect to your availability API endpoint to show only open slots.
Short text fields: Full Name (required), Age (optional), Reason for visit (text area). Keep fields minimal — more fields = lower completion rate.
Summary screen showing: service, doctor, date, time, name. "Confirm & Book" CTA button. This reduces accidental submissions and misbooked slots.
On Flow submit → POST booking data to your calendar system (webhook URL). Trigger Utility template: "Appointment confirmed — [details]."
⚠️ Dynamic slot availability requires a webhook endpoint. If you don't have a calendar API, use static time slots in a radio button list — this still works well and avoids over-booking if you update the Flow regularly.
WhatsApp Flows are defined in JSON. WA.Expert's builder generates this automatically. Here's the structure for a basic appointment booking Flow — useful if you're submitting via the API directly.
💡 WA.Expert generates this JSON automatically when you use the drag-and-drop Flow builder. You only need to work with raw JSON if you're building via the Cloud API directly.
Doctor selection → date picker → reason for visit → confirmation. Connects to clinic management software via webhook. Typical no-show reduction: 35–45%.
Service selection (haircut, facial, massage) → stylist selection → date/time → booking. Add-on upsell on the confirmation screen. Prepayment link optional.
Project selection → agent selection → date/time → contact details. Auto-assigns agent and sends Google Maps link. Used by top developers in Mumbai and Bengaluru.
Vehicle model → service type (regular/repair/inspection) → workshop location → date/time. Confirmation with job card number and pickup time promise.
Practice area (tax, corporate, family law) → lawyer selection → 30/60 min session → date/time. Calendly-like but entirely inside WhatsApp. Consultation fee collection via UPI button.
Course / subject → faculty → demo class slot → student details. Connects to LMS for slot management. Common use: IIT-JEE, CA, UPSC coaching centres across India.
Full use-case playbook — templates, reminders, and no-show reduction.
Read playbook →Collect UPI payments inside WhatsApp — Razorpay & Cashfree setup.
Read guide →No-code Flow builder. Webhook integration. Automatic confirmation messages. Live in 30 minutes.