Know Instantly When Someone Declines
Key attendees declining is important context. Notis sends a Slack reminder when anyone says no, so you can quickly decide if the meeting still makes sense or if you need to reschedule to get critical people in the room.
Trigger
Attendee Response Changed
Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
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
Declined RSVPs are easy to overlook if they're buried in email notifications. Losing key stakeholders without realizing it creates wasted meeting time and undermines collaboration. A dedicated Slack alert ensures you catch every decline.
- Immediately adjust meeting scope if key people can't attend
- Decide whether to cancel, reschedule, or proceed without them
- Know to follow up with declined attendees proactively
- Reduce wasted time by not running meetings without critical participants
Setup
Build it in a few focused steps.
- 1Connect Google Calendar and Slack to Notis.
- 2Create an automation called 'Declined Invitation Alert'.
- 3Write this prompt: 'When someone declines a meeting on my calendar, send me a Slack reminder with their name, the meeting title, and a note to consider whether to reschedule or proceed without them.'
- 4Set the trigger to 'Attendee Response Changed.'
- 5Choose a Slack channel for these alerts.
- 6Test by asking a colleague to decline an upcoming meeting.
Questions about this workflow
Should I only worry about declines from specific people?
Tell Notis: 'Alert me for all declines, but flag separately if it's from my direct reports or the exec team.'
Can I automatically reschedule?
Notis sends the alert to you. You can then decide to reschedule or proceed, which is the right level of automation for this decision.
What if I expect someone to decline?
You'll still get the alert, which confirms their status and you can ignore if expected.
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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