Check Calendly open times from Slack meeting requests
Stop bouncing between a Slack request and your booking page just to find possible times. Notis can check available Calendly slots.
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
List event type available times
Fetches available time slots for a calendly event type within a specified time range; results are not paginated.
Why this helps
Finding open slots manually interrupts focused work and makes it easy to delay replying with options.
- Check open slots in the context of the request.
- Reduce back-and-forth spent finding possible times.
- Keep the next scheduling step easier to act on.
Setup
Build it in a few focused steps.
- 1Connect Slack and Calendly to Notis once through the portal.
- 2Create an automation in the portal or ask Notis conversationally.
- 3Write one instruction asking Notis to check available times for the appropriate Calendly event type when a channel message clearly requests a meeting and provides a date range.
- 4Select the Slack channel message trigger and choose the reporting channel.
- 5Test with a real request that includes a meeting window.
Questions about this workflow
Does this book a time?
No. It checks available time slots for a Calendly event type; someone still needs to complete a booking.
What details help it check availability?
A clear meeting request, the relevant event type, and a date range that Calendly can search.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Calendly. A trigger fires from one place; an action lands in another.
Slack triggers
Calendly actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Cancel event
Permanently cancels an existing, active scheduled event by its `uuid`, optionally providing a `reason`, which may trigger notifications to invitees.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Create an invitee no-show
Marks an invitee, identified by their existing and valid uri, as a 'no show' for a scheduled event.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Create One-Off Event Type
Creates a temporary calendly one-off event type for unique meetings outside regular availability, requiring valid host/co-host uris, a future date/range for `date setting`, and a positive `duration`.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Create scheduling link
Create a single-use scheduling link. creates a scheduling link that can be used to book an event. the link allows invitees to schedule up to the specified maximum number of events. once the limit is reached, the link becomes inactive.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Create share
Creates a customizable, one-time share link for a calendly event type, allowing specific overrides to its settings (e.g., duration, availability, location) without altering the original event type.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Create single use scheduling link
Creates a one-time, single-use scheduling link for an active calendly event type, expiring after one booking.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Create webhook subscription
Creates a calendly webhook subscription to notify a specified `url` (which must be a publicly accessible https endpoint) for selected `events` within a given `organization` and `scope`.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Delete invitee data
Permanently removes all invitee data associated with the provided emails from past organization events, for data privacy compliance (requires enterprise subscription; deletion may take up to one week).
Connect any two apps with Notis in the middle.
Slack and Calendly, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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