Never Miss Changes to High-Priority Meetings
Important meetings deserve attention. Notis alerts you in Slack whenever a priority meeting changes in time, attendees, or scope, so you adjust your prep and communication immediately.
Trigger
Event Updated
Triggers when an existing Google Calendar event is modified. Returns the event ID, change type, and the specific fields that changed with their previous and new values.
Action
Create a reminder
Creates a slack reminder with specified text and time; time accepts unix timestamps, seconds from now, or natural language (e.g., 'in 15 minutes', 'every thursday at 2pm').
Why this helps
Hyperfocus and context-switching mean founders can miss subtle changes to important meetings, especially if they happen while they're deep in work. Missing a time change on a board meeting or investor call is professionally damaging.
- Never show up at the wrong time to important calls
- Catch scope changes to adjust prep effort
- Know immediately if key stakeholders are added or removed
- Demonstrate reliability by staying on top of critical meetings
Setup
Build it in a few focused steps.
- 1Connect Google Calendar and Slack to Notis.
- 2Create an automation called 'Important Event Change Tracking'.
- 3Write this prompt: 'For any meetings with board, investor, client, or important in the title: when those events are updated, send me a Slack alert highlighting exactly what changed (time, attendees, description, etc.) so I can adjust prep immediately.'
- 4Set the trigger to 'Event Updated'.
- 5Choose a Slack channel for urgent alerts.
- 6Test by modifying an event marked as important or board-related.
Questions about this workflow
How do I mark a meeting as important?
Use words like 'board', 'investor', 'client', or 'important' in the meeting title.
What if a minor detail changes that I don't care about?
Tell Notis: 'Only alert me on major changes like time, attendees, or location. Skip description edits.'
Can I set this up just for specific meetings?
Yes. Tell Notis: 'Only track 1-on-1s with my CEO' or 'Board meetings only.'
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Calendar to Slack. A trigger fires from one place; an action lands in another.
Google Calendar triggers
Slack actions
Attendee Response Changed
Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
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.
Add a custom emoji to a Slack team
Deprecated: adds a custom emoji to a slack workspace given a unique name and an image url. use `add emoji` instead.
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.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
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).
Add a remote file
Adds a reference to an external file (e.g., google drive, dropbox) to slack for discovery and sharing, requiring a unique `external id` and an `external url` accessible by slack.
Event Created
Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
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).
Add call participants
Registers new participants added to a slack call.
Event Updated
Triggers when an existing Google Calendar event is modified. Returns the event ID, change type, and the specific fields that changed with their previous and new values.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
Add reaction to message
Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.
Connect any two apps with Notis in the middle.
Not just Google Calendar and Slack. Any combination from 985+ integrations.
When this happens · Trigger
Do this · Action
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