Handle Meeting No-Shows: Gmail & Google Calendar n8n

Turn meeting no-shows into automatic rescheduling—right from Gmail reminders

Handle Meeting No-Shows is an n8n automation workflow that processes one-click reminder links to confirm, reschedule, or cancel a Google Calendar meeting—and automatically notifies attendees via Gmail. If a meeting needs rescheduling, the workflow uses an OpenAI-powered agent to recreate the event (including Google Meet) and replace the original calendar entry.

What this workflow does

• Receives an action request via a webhook from a reminder-email link, using query parameters such as action, email, eventId, and optionally newDateTime.
• Routes the request using an action value into one of three paths: confirm, reschedule, or cancel.
• Confirm: Fetches the Google Calendar event by eventId, extracts the attendee email and the Google Meet link, and sends a confirmation email via Gmail.
• Reschedule: Retrieves existing event details, then uses an OpenAI-powered agent with Google Calendar tools to create a replacement event (with Google Meet) and delete the original event.
• Notifies attendees: Sends a reschedule email via Gmail including the requested new time and the meeting link.
• Cancel: Deletes the event from Google Calendar and sends a cancellation email via Gmail.

Use cases

• A SaaS team sends reminder emails; attendees click “reschedule” when plans change—no manual calendar work.
• Reduce missed meetings by automatically confirming or cancelling based on attendee responses.
• Operations teams replace events with updated Google Meet links while keeping calendar data accurate.

Technical details

• n8n nodes/integrations used: webhook, switch, set, gmail, google calendar, plus a sticky note.
• Requires credentials for Google Calendar OAuth2, Gmail sending, and an OpenAI API credential for the rescheduling agent.
• Setup includes replacing YOUR_CALENDAR_ID and updating YOUR_TIMEZONE in agent instructions/event-creation tool description.