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Google Calendar + Slack: meeting reminders in chat.

Post Calendar event reminders to Slack channels or DMs, summarize daily agendas, or notify when a meeting starts or changes.

Connect Google Calendar and SlackSee reverse direction
Trigger app
Google Calendar as the trigger

Workflows fire when something happens in Google Calendar.

Action app
Slack as the action

Workflows do something in Slack, instantly.

See all 45 actions →
Both directions

Pick the way that fits your stack.

Pair pages are mirrored. Each direction gets its own dedicated page.

Google Calendar → Slack

When something happens in Google Calendar, do it in Slack.

5 Google Calendar triggers wired to 45 Slack actions. Most-used pairing: Event Cancelled → Add Reaction.

Slack → Google Calendar

Or fire it the other way around.

13 Slack triggers wired to 7 Google Calendar actions downstream.

See Slack → Google Calendar →
Popular pairings

Common Google Calendar → Slack workflows.

Pick a pairing to set it up in two minutes. Each one is a fully editable recipe.

Showing 9 of 225 combinations
When event cancelled in Google Calendar, add reaction in Slack.

Fires when an event is cancelled or deleted from the selected Google Calendar. Use to release Zoom resources, update CRM activity, or notify attendees via another channel.

When event cancelled in Google Calendar, raw api request in Slack.

Fires when an event is cancelled or deleted from the selected Google Calendar. Use to release Zoom resources, update CRM activity, or notify attendees via another channel.

When event cancelled in Google Calendar, archive channel in Slack.

Fires when an event is cancelled or deleted from the selected Google Calendar. Use to release Zoom resources, update CRM activity, or notify attendees via another channel.

When event cancelled in Google Calendar, cancel scheduled message in Slack.

Fires when an event is cancelled or deleted from the selected Google Calendar. Use to release Zoom resources, update CRM activity, or notify attendees via another channel.

When new event in Google Calendar, add reaction in Slack.

Fires when a new event is added to the selected Google Calendar. Used to mirror booked meetings into CRM, send prep, or auto-create Zoom links.

When new event in Google Calendar, raw api request in Slack.

Fires when a new event is added to the selected Google Calendar. Used to mirror booked meetings into CRM, send prep, or auto-create Zoom links.

When new event in Google Calendar, archive channel in Slack.

Fires when a new event is added to the selected Google Calendar. Used to mirror booked meetings into CRM, send prep, or auto-create Zoom links.

When new event in Google Calendar, cancel scheduled message in Slack.

Fires when a new event is added to the selected Google Calendar. Used to mirror booked meetings into CRM, send prep, or auto-create Zoom links.

When event ended in Google Calendar, add reaction in Slack.

Fires when an event in the selected Google Calendar ends. Polls for events whose end time falls inside the most recent polling window. Use to follow up after a meeting or to kick off a recording/summary pipeline.

How it works

Connect Google Calendar and Slack in five steps.

No code, no glue, no half-day setup. Each step is one click.

  1. 1
    Connect
    Authorize Google Calendar and Slack

    Open Tiny Command, authorize Google Calendar and Slack once each. Both connections are available to every workflow on your account.

  2. 2
    Trigger
    Pick a Google Calendar trigger

    Drop the Google Calendar → Event Cancelled trigger onto the canvas. Tiny Command auto-registers the webhook.

    POST /v1/webhooks/google-calendar.trigger-event-cancelled
  3. 3
    Transform
    Add a filter or AI step

    Optionally add a Filter node ("subject contains URGENT") or an AI step ("classify intent") between trigger and action.

  4. 4
    Action
    Add the Slack action

    Drop the Slack → Add Reaction action below it. Map fields from the Google Calendar payload into the Slack inputs.

    slack.add-reaction
  5. 5
    Publish
    Publish and forget

    Hit Publish. Tiny Command runs it in production from second one. Watch the run-log fill up.

FAQ

Questions about Google Calendar + Slack.

How do I post upcoming Calendar events to Slack?
Scheduled 9am daily: List Events for today → format as bullet list → Slack Send Message to your DM or a team channel. Single morning checkpoint instead of constantly checking calendar.
Can I get a Slack DM 15 minutes before each meeting?
Yes. Calendar Event Starting Soon → Slack Send DM to the organizer with meeting details + join URL. Reduces "I forgot" meetings.
How do I post Calendar event changes to the team?
Calendar Event Updated → Slack Send Message in a team channel with what changed (time, attendees, location). Useful when shared team meetings move and not everyone reads calendar notifications.
Can Slack reactions update Calendar event responses?
Yes. Slack message with RSVP buttons → button click trigger → Calendar Update Event response (accept/decline). Useful for team-meeting RSVPs without leaving Slack.
How do I set Slack status when a Calendar meeting starts?
Calendar Event Starting → Slack Set Status with emoji "🤝 In a meeting" and expire timer matching event end. Auto-clears on meeting end. Reduces interruption pings.
Can I avoid Slack noise for back-to-back meetings?
Aggregate. Replace per-meeting pings with a single morning digest. Or only ping for meetings with external attendees (when prep actually matters).
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Wire Google Calendar to Slack in 2 minutes.

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