Update calendar events when context changes
Let new source knowledge improve the event already on your calendar.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Patch Event
Updates specified fields of an existing event in a google calendar using patch semantics (array fields like `attendees` are fully replaced if provided); ensure the `calendar id` and `event id` are valid and the user has write access to the calendar.
Why this helps
Meeting context changes after the event is created, leaving stale descriptions and details.
- Refresh only changed details
- Preserve existing event information
- Keep agendas aligned with source material
Setup
Build it in a few focused steps.
- 1Connect BrainGraph and Google Calendar in Notis once.
- 2Create an event-update automation.
- 3Tell Notis to identify the matching event and patch only details supported by the new source context.
- 4Choose the webhook trigger and report channel.
- 5Test with one event and one updated source.
Questions about this workflow
Does patching replace all event fields?
No. Patch semantics update only the fields Notis is instructed to change.
Can it update attendees?
Yes, but attendee arrays are replaced when provided, so specify the complete intended list.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link BrainGraph to Google Calendar. A trigger fires from one place; an action lands in another.
BrainGraph 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.
BrainGraph and Google Calendar, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
Save your first hour today.
7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business Google Calendar.