Automated SMS Reminders for Google Calendar Meetings

Transform your Google Calendar into an intelligent SMS reminder system that automatically sends personalized meeting alerts to your phone every morning. This n8n workflow fetches your daily calendar events at 9 AM, uses GPT-4o-mini to craft natural-sounding SMS reminders, and delivers them via Alive5 – eliminating missed meetings without manual intervention.

What This Workflow Does

This automated Google Calendar SMS reminder system handles five essential tasks:

• Triggers automatically every morning at 9 AM – Cron-based schedule fires daily without any manual input
• Fetches today's calendar events – Pulls every meeting from your Google Calendar for the current day in one clean call
• Loops through each meeting individually – If you have 3 meetings, you get 3 SMS reminders; one per event, processed in order
• Generates natural-sounding SMS with GPT-4o-mini – A 9-rule system prompt produces friendly, professional reminders under 160 characters with no greetings, no emojis, no sign-offs
• Delivers SMS via Alive5 – Sends each personalized reminder directly to your US phone number

Use Cases

Perfect for busy professionals who need reliable meeting reminders:

• Sales representatives managing multiple client calls and demos throughout the day
• Consultants juggling meetings across different time zones and projects
• Remote workers who want clean, distraction-free notifications separate from email chaos
• Founders and executives with packed schedules requiring personal, human-sounding reminders
• Team leads coordinating multiple daily standup meetings and client check-ins

Technical Details

This n8n automation workflow utilizes:

• Schedule Trigger – Daily cron job execution
• Google Calendar integration – Event fetching and processing
• Split in Batches node – Individual meeting processing
• GPT-4o-mini integration – AI-powered SMS content generation
• Alive5 SMS service – US phone number delivery
• Set nodes and Sticky Notes – Workflow organization and data handling

Stop fumbling with calendar notifications and enjoy a personal, automated reminder system that feels human, not robotic.