Automate Phone Call Appointment Reminders with Google Calendar and Retell AI

This workflow automates phone call reminders for upcoming appointments by integrating Google Calendar with Retell AI. It helps businesses reduce no-shows and improve efficiency by ensuring clients are reminded of their scheduled appointments.

n8n
Automate Phone Call Appointment Reminders with Google Calendar and Retell AI

The workflow is triggered daily at a configurable time, fetching upcoming events from Google Calendar. It extracts necessary details from each event, such as the client's name, phone number, and appointment reason. These details are then used to configure Retell AI, which places personalized reminder calls to clients. This setup is ideal for healthcare providers, salons, consultants, and any service-based business aiming to reduce missed appointments.

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Last updated September 5, 2026
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How to import this workflow into n8n

  1. 1Purchase or download the workflow to get the n8n workflow JSON file.
  2. 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
  3. 3Open each node marked with a credential warning and connect your own accounts and API keys.
  4. 4Run the workflow once manually to verify the data flow, then toggle it to Active.

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