# Appointment reminder the day before on WhatsApp

> The **Appointment reminder** scenario sends the customer a WhatsApp message the day before their Calendly or Cal.com appointment, at 6 pm (you can change the time), with two buttons: **I confirm** and **Change**. “Change” sends them the link to pick another slot, without the team having to step in.

## Steps

1. Connect Calendly or Cal.com: see [Connect Calendly to WYP.chat](https://wyp.chat/en/help/connecter-calendly) or [Connect Cal.com to WYP.chat](https://wyp.chat/en/help/connecter-cal-com).
2. Open **Automation › Scenarios**, **Ready-made scenarios** tab, click **Appointment reminder**, then **Install**.
3. The **When** block is set to **the day before the appointment at 6 pm**: click it to change the day or the time.
4. If the customer wrote to you in the last 24 hours, the reminder goes out as a button message. Otherwise WhatsApp requires a message it has approved: the scenario uses the **Appointment reminder** utility template from the library, with one button to confirm and one to change the appointment. Open **Sales › Templates**, import it from the library and click **Send to WhatsApp for approval**, then choose it as the **WhatsApp-approved message** in the reminder step.
5. When the customer replies **Change**, WYP.chat sends them Calendly’s reschedule link (with Cal.com, their booking page). Without a link, the conversation goes to the team.
6. Test the scenario with **Test**, then click **Activate**.

**Good to know** The reminder only goes out on WhatsApp, and only if the customer has a reachable WhatsApp number. A customer who replied STOP or refused your messages gets no reminder. It is the only ready-made scenario that can be active by default even though it writes before the customer does: someone who has just booked expects this reminder. Appointments booked before Calendly or Cal.com was connected do not get one. To follow what is sent, see [Follow and edit an active scenario](https://wyp.chat/en/help/suivre-workflow).

## Related articles

- [Connect Calendly to WYP.chat](https://wyp.chat/en/help/connecter-calendly) Paste a Calendly token in Settings: every booking, reschedule or cancellation shows in the customer’s conversation. Needs a paid Calendly plan.
- [Connect Cal.com to WYP.chat](https://wyp.chat/en/help/connecter-cal-com) Paste a Cal.com API key in Settings: every booking, reschedule or cancellation shows in the customer’s WhatsApp conversation.
- [Create a scenario](https://wyp.chat/en/help/creer-workflow) Create a WYP.chat scenario from the gallery or from scratch, started by a message or by your AI agent, test it in the simulator, then activate it.
- [Write to a customer after 24 hours](https://wyp.chat/en/help/modeles-24h) After 24 hours without a message from the customer, WhatsApp only lets you send a template it has approved.

**Learn more**

- [Calendly and WhatsApp: every booking in the customer’s conversation](https://wyp.chat/en/integrations/calendly)
- [Cal.com and WhatsApp: every booking in the customer’s conversation](https://wyp.chat/en/integrations/cal-com)
- [Automate WhatsApp Business with scenarios](https://wyp.chat/en/features/workflows)

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Source: https://wyp.chat/en/help/rappel-rendez-vous · Updated on 11 October 2026