Clear cancelled events safely
When cancellation and deletion approval are both explicit, remove the stale calendar commitment.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Delete event
Deletes a specified event by `event id` from a google calendar (`calendar id`); this action is idempotent and raises a 404 error if the event is not found.
Why this helps
Cancelled events remain as visual noise and can make an already-full day look impossible.
- Remove stale commitments promptly.
- Require exact IDs before deletion.
- Keep destructive cleanup separate from untrusted external text.
Setup
Build it in a few focused steps.
- 1Connect both integrations once.
- 2Create a webhook automation that deletes a linked event only after trusted authorization confirms the cancellation.
- 3Supply the exact calendar ID and event ID; never infer deletion authority from the payload.
- 4Send one authorized test and confirm the event is gone.
Questions about this workflow
Can an Eventbrite cancellation authorize deletion by itself?
No. Deletion requires trusted authorization outside the external payload plus exact calendar and event IDs.
What if the event is already gone?
The action is idempotent but may report a not-found result for review.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Eventbrite to Google Calendar. A trigger fires from one place; an action lands in another.
Eventbrite triggers
Google Calendar actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Insert Calendar into List
Inserts an existing calendar into the user's calendar list.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Update Calendar List Entry
Updates an existing entry on the user\'s calendar list.
Delete Calendar
Deletes a secondary calendar. use calendars.clear for clearing all events on primary calendars.
Update Calendar
Updates metadata for a calendar.
Clear Calendar
Clears a primary calendar. this operation deletes all events associated with the primary calendar of an account.
Create Event
Creates an event on a google calendar, needing rfc3339 utc start/end times (end after start) and write access to the calendar. by default, adds the organizer as an attendee unless exclude organizer is set to true.
Delete event
Deletes a specified event by `event id` from a google calendar (`calendar id`); this action is idempotent and raises a 404 error if the event is not found.
Create a calendar
Creates a new, empty google calendar with the specified title (summary).
Connect any two apps with Notis in the middle.
Eventbrite and Google Calendar, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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