Auto-reply to email threads when meetings cancel
A meeting on your calendar gets canceled. Notis automatically replies in the Gmail thread about it, confirming cancellation so everyone knows.
Trigger
Event Canceled or Deleted
Triggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp.
Action
Reply to email thread
Sends a reply within a specific gmail thread using the original thread's subject, requiring a valid `thread id` and correctly formatted email addresses. supports attachments via the `attachment` parameter with valid `s3key`, `mimetype`, and `name`.
Why this helps
A meeting is canceled, but people are still discussing it in email threads. Some miss the cancellation notice and prepare for a meeting that won't happen.
- Eliminate confusion by replying to the email thread discussing a canceled meeting, not just updating calendar
- Keep communication in one place by having cancellation in email where people are looking
- Save everyone's time by confirming the cancellation so they don't prep for a non-existent meeting
Setup
Build it in a few focused steps.
- 1Connect Google Calendar and Gmail to Notis
- 2Tell Notis 'When a meeting is canceled, reply to the Gmail thread about it confirming cancellation'
- 3Select the trigger: Event Canceled or Deleted
- 4Customize the reply message (e.g., 'This meeting has been canceled')
- 5Test by scheduling a meeting, discussing it in email, canceling it, and checking for the automatic reply
Questions about this workflow
How does Notis know which email thread to reply to?
Notis searches for emails mentioning the canceled meeting's title or attendees. It finds the thread and replies with confirmation.
Should I offer to reschedule in the reply?
You can customize the reply: 'This meeting is canceled. Let's reschedule for next week—I'll send new times.' Or just confirm cancellation. Your choice.
What if the thread is from weeks ago?
Notis searches recent threads first but can find older ones. If there's no thread, it won't reply. You can manually jump in if needed.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Calendar to Gmail. A trigger fires from one place; an action lands in another.
Google Calendar triggers
Gmail actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Modify email labels
Adds and/or removes specified gmail labels for a message; ensure `message id` and all `label ids` are valid (use 'listlabels' for custom label ids).
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Create email draft
Creates a gmail email draft, supporting to/cc/bcc, subject, plain/html body (ensure `is html=true` for html), attachments, and threading.
Attendee Response Changed
Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
Create label
Creates a new label with a unique name in the specified user's gmail account.
Event Canceled or Deleted
Triggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp.
Delete Draft
Permanently deletes a specific gmail draft using its id; ensure the draft exists and the user has necessary permissions for the given `user id`.
Event Starting Soon
Triggers when a calendar event is within a configured number of minutes from starting. Returns event details, time remaining, attendees, and join links when available.
Delete message
Permanently deletes a specific email message by its id from a gmail mailbox; for `user id`, use 'me' for the authenticated user or an email address to which the authenticated user has delegated access.
Calendar Event Changes
**SOON TO BE DEPRECATED** - Use Calendar Event Sync (polling trigger) instead. Real-time webhook trigger for calendar event changes. Returns event metadata only. For full event data, use Calendar Event Sync (polling trigger).
Fetch emails
Fetches a list of email messages from a gmail account, supporting filtering, pagination, and optional full content retrieval.
Event Created
Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.
Fetch message by message ID
Fetches a specific email message by its id, provided the `message id` exists and is accessible to the authenticated `user id`.
Calendar Event Sync
Polling trigger that returns full event data including details, attendees, and metadata. For real-time notifications with basic info, use Calendar Event Changes (webhook).
Fetch Message by Thread ID
Retrieves messages from a gmail thread using its `thread id`, where the thread must be accessible by the specified `user id`.
Connect any two apps with Notis in the middle.
Google Calendar and Gmail, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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