TL;DR
To send WhatsApp appointment reminders in Vendschat: label that day’s appointments, get a Meta-Approved Utility template, then schedule a Sunday broadcast. Session messages only work inside WhatsApp’s 24-hour window.
This walkthrough uses Metro Clinics as an illustrative example (not a customer). Same path as any small shop: labels, a Meta-approved Utility template, then a Sunday broadcast. Never put medical results in the message.
Ship the after-hours AI Agent first. The receptionist walkthrough is here: https://vendschat.com/blog/whatsapp-ai-agent-after-hours
Quotable facts: outside the 24-hour session window you must use a Meta-Approved template. Broadcasts need the Growth plan. Never put lab values in a reminder. Paid plans from $20/mo; first 100 customers get 80% off.
Why do WhatsApp appointment reminders need three pieces?
Metro Clinics shares one WhatsApp number across three locations. Staff already tag booking chats. Sunday night they send one reminder to everyone labeled for Monday — date, time, location, and a Confirm button. Monday morning they filter Chat for replies instead of calling every slot.
WhatsApp’s 24-hour session window is real. Inside it you can send a session message. Outside it you must use a Meta-Approved template. Reminders almost always go out as templates.
How do you label WhatsApp appointments in Vendschat?
Open Settings → Workspace → Labels. Metro keeps a short set. Keywords auto-apply during Chat so the Sunday list is already built.
- Booking — new appointment requests (keywords: appointment, book)
- Results — lab or imaging questions (keywords: lab, results). Staff only — the bot never interprets these.
- Insurance — coverage and referral
- Location-North — routed to the north desk
- Appt-Mon — applied during booking chats for everyone coming in Monday. Repeat as Appt-Tue, Appt-Wed.
Do WhatsApp appointment reminders need a Meta-approved template?
Open Templates in the left nav. Pick the WhatsApp channel card, then Create New Template. Wait for Meta to mark it Approved before you schedule anything.
- Name it appointment_reminder. Category: Utility — transactional, not a promo.
- Body with variables for name, location, date, and time. Example: “Hi {{1}}, reminder: {{2}} at Metro Clinics {{3}} on {{4}} at {{5}}. Reply Confirm if you will attend.”
- Add a Confirm quick-reply button. Fill sample values so Meta can review.
- Submit for Approval. Drafts are not saved — finish the form in one sitting.
Never put lab values, diagnoses, or clinical advice in a template. A separate results_ready template can say pickup instructions only — no result numbers.
How do you send a Sunday WhatsApp reminder broadcast?
Open Broadcast in the left nav. History shows past campaigns — Failed and Cancelled included. Click New broadcast. Metro needs the Growth plan for reminder broadcasts.
- Campaign name something the team will recognise in history and analytics — Metro-Mon-reminders, not a random date stamp.
- Pick the WhatsApp channel. The green callout on the dialog is the rule: approved templates to any contact, or session messages only inside the 24-hour window.
- Recipients: Existing contacts if you labeled people in Chat (Metro’s path — target Appt-Mon). New numbers is a CSV upload when the list is not already in Vendschat.
- Click Create & compose. Choose appointment_reminder, map the variables, then schedule Sunday 5 PM UTC. Dry-run an internal test number first.
Monday morning
Filter Chat for Confirm replies and Booking overflow. Check Analytics for Failed on the template — usually a bad number or a variable that did not map. Honor stop requests: label Do-not-broadcast so they never land on next Sunday’s list.
Reminders stay on WhatsApp. Instagram can collect marketing DMs; convert those people to WhatsApp before you put them on an Appt-* label.
Automated replies must not give medical advice. The night receptionist and the reminder template are logistics only. Clinical questions wait for a human in business hours.
FAQ
Can I send WhatsApp reminders outside the 24-hour window?
Yes, if you use a Meta-Approved template. Inside the 24-hour session you can send a session message. Appointment reminders almost always go out as templates because they land the night before.
What WhatsApp template category should appointment reminders use?
Utility — transactional, not a promo. Name it appointment_reminder, add date/time/location variables, and a Confirm quick-reply. Wait for Meta Approved before you schedule.
Which Vendschat plan includes reminder broadcasts?
Growth. Create the campaign under Broadcast → New broadcast, target a label such as Appt-Mon, and schedule Sunday 5 PM UTC after a test send.
Can lab results go in a WhatsApp reminder template?
No. Never put lab values, diagnoses, or clinical advice in a template. A separate results_ready template may cover pickup instructions only.
How much does Vendschat cost?
Paid plans start at $20/mo. First 100 customers get 80% off, first months free. Growth is the plan that includes reminder broadcasts.
Ready to cut no-shows?
- Sign up at vendschat.com — no card needed
- Connect WhatsApp
- Create labels, then Templates → Create New Template — Utility, wait for Approved
- Open Broadcast → New broadcast, target the label, schedule Sunday
Paid plans start at $20/mo. First 100 customers get 80% off, first months free. Growth is the plan that includes reminder broadcasts.
