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TriggerGoogle CalendarReal-timeUpdated May 2026

How do I trigger when a Google Calendar event changes?

Short answer: Drop the "Google CalendarEvent Updated" trigger on your workflow canvas, add filters if you want them, and publish. It fires within seconds of the event in Google Calendar, not on a polling schedule.

Anatomy

What this trigger looks like in a workflow.

Drop it on the canvas. Configure a couple of fields. Publish.

In the builder
Trigger
Event Updated
When the matching event happens
when calendar event updatedgoogle calendar event changedwatch for event updateon event modifiedwhen meeting is rescheduledcalendar event editedevent time changed
What this trigger returns
for the curious

You don’t need to read this. Tiny Command auto-maps every field into the visual picker so downstream nodes can pull values by clicking. We show it here for power users who want to know what’s on the wire.

{
"items": [
{
"id": "abc123def456",
"end": {
"dateTime": "2026-05-08T16:00:00-07:00",
"timeZone": "America/Los_Angeles"
},
"start": {
"dateTime": "2026-05-08T15:30:00-07:00",
"timeZone": "America/Los_Angeles"
},
"status": "confirmed",
"created": "2026-05-01T09:30:00.000Z",
"creator": {
"email": "owner@example.com"
},
"iCalUID": "abc123def456@google.com",
"summary": "Team Standup (rescheduled)",
"updated": "2026-05-08T11:45:00.000Z",
"htmlLink": "https://www.google.com/calendar/event?eid=abc",
"sequence": 2,
"attendees": [
{
"email": "alice@example.com",
"responseStatus": "accepted"
}
],
"eventType": "default",
"organizer": {
"self": true,
"email": "owner@example.com"
},
"description": "Daily sync — moved 30 min later",
"hangoutLink": "https://meet.google.com/abc-defg-hij"
}
]
}
Output shape

Fields available to downstream nodes.

Every field below can be referenced by name in any action or filter that comes after this trigger.

FieldTypeExample
itemsarray[{"id":"abc123def456","end":{"dateTime":"2026-05-08T16:00:00
FAQ

Questions about Event Updated.

How does the Event Updated trigger work in Google Calendar?
Fires when an existing event is modified (rescheduled, retitled, attendees added/removed, etc.) in the selected Google Calendar. Combine with field filters to react only to specific changes.
Is the Event Updated trigger real-time?
Yes. Event Updated uses webhooks or push subscriptions, not polling. Your workflow fires within seconds of the event happening in Google Calendar.
What data does Event Updated return?
The full event payload from Google Calendar. The output shape table on this page lists every field, its type, and an example value so you can map fields into downstream nodes.
Can I filter Event Updated so only some events start a workflow?
Yes. Add a Filter node right after the trigger and match on any field, whether that's subject, sender, status, or anything else in the payload. Workflows only continue when the filter passes.
Do I need Google Calendar admin permissions to use Event Updated?
For most Google Calendar accounts a standard user can authorize the trigger. Some Google Calendar plans require an admin to enable third-party webhooks. Check Google Calendar's docs if the trigger fails to register.
More triggers

Other Google Calendar triggers.

Build a workflow on this trigger.

One trigger. 7+ downstream actions. Zero glue.