Find upcoming Cal bookings from a Slack conversation
When someone asks about a scheduled meeting in Slack, have Notis look up matching Cal bookings and share the useful details in its run report.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
Fetch all bookings
Fetches a list of bookings, optionally filtered by status, attendee, date range, or by event/team ids (which must belong to/include the authenticated user respectively), with support for pagination and sorting.
Why this helps
Searching calendars while tracking a busy Slack conversation makes it easy to lose the thread or miss a meeting detail.
- Cuts down on switching between Slack and Cal to answer routine scheduling questions.
- Keeps the response grounded in current booking records.
- Helps teams resolve meeting questions while the conversation is active.
Setup
Build it in a few focused steps.
- 1Connect Slack and Cal to Notis once through the portal.
- 2Create an automation in the portal, or ask Notis conversationally to look up Cal bookings mentioned in Slack channel messages.
- 3Write one plain-language instruction describing which booking questions to answer and what information to report.
- 4Select Channel Message Received as the trigger and choose where Notis should report each run.
- 5Test with one real Slack question about an upcoming booking.
Questions about this workflow
Will this create or change a booking?
No. It fetches bookings for lookup and does not create, confirm, or change them.
Does it respond directly in Slack?
The automation follows its plain-language instruction; choose a channel for run reports during setup.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Cal. A trigger fires from one place; an action lands in another.
Slack triggers
Cal actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Add member to team
Adds a new member to a specified team within an organization by creating a team membership.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Add organization attribute option
Adds a new option to an organization's attribute, requiring a display `value` and a `slug` unique for that attribute.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Delete oauth client webhook
Permanently deletes a specific webhook subscription of an oauth client in the cal application, stopping its notifications.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Cancel booking via uid
Cancels an existing and active cal.com booking using its unique identifier (uid).
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Check calendar availability
Retrieves free/busy availability for a specified calendar to aid scheduling without revealing event details; requires an existing, accessible calendar, noting that data granularity can vary.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Check gcal synchronization status
Call this read-only action to verify the connection and synchronization status of a user's google calendar integration with cal.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Check ics feed calendar endpoint
Checks an ics feed url (expected as a query parameter) to verify its validity, accessibility, and icalendar data integrity.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Check Stripe status
Verifies if stripe is correctly connected to the cal scheduling system and functional for processing payments, reporting only on the integration's status.
Connect any two apps with Notis in the middle.
Slack and Cal, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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