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Check appointment openings from a Slack reaction

When you spot a request worth scheduling, add your chosen reaction and let Notis check Appointo for openings related to the request.

Trigger

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

Action

Get Appointment Availability

Tool to get calendar availability for a specific appointment. Use when you need to fetch available time slots for an appointment within a date range.

Why this helps

Switching away to check a calendar can break focus before you have even answered the request.

  • Flag scheduling requests with a quick gesture.
  • Check openings without manually navigating away.
  • Keep the request and availability check connected.

Setup

Build it in a few focused steps.

  • 1Connect Slack and Appointo to Notis once in the portal.
  • 2Create an automation in plain language to check Appointo availability for a message marked with your chosen reaction.
  • 3Choose the Slack Message Reaction Added trigger and a channel for run reports.
  • 4Test with a real appointment request and the reaction you intend to use.

Questions about this workflow

Can I choose a specific reaction?

The reaction trigger supports optional filtering by emoji name and channel.

What does the action return?

It gets availability for a specific appointment within a date range.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Slack to Appointo. A trigger fires from one place; an action lands in another.

Slack triggers

Appointo actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Authenticate Appointo API Token

Tool to authenticate with the Appointo API by validating the APPOINTO-TOKEN header. Use when verifying the token before subsequent API calls.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Cancel Booking

Tool to cancel a booking or selected customers. Use when you need to revoke an entire booking or individual attendees after verifying booking details. Use after retrieving booking information.

ActionInstant

New Channel Created Trigger

Triggered when a new channel is created in Slack.

TriggerInstant

Create Booking

Tool to create a new booking. Use when scheduling a customer booking after confirming appointment availability.

ActionInstant

Channel Message Received

Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.

TriggerInstant

Get Appointment Availability

Tool to get calendar availability for a specific appointment. Use when you need to fetch available time slots for an appointment within a date range.

ActionInstant

Direct Message Received

Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.

TriggerInstant

List Appointments

Tool to list appointments. Use when fetching appointments with optional filters and pagination after confirming a valid API token.

ActionInstant

Message Reaction Added

Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

List Bookings

Tool to list bookings. Use when you need to fetch bookings filtered by status, paging, or search term.

ActionInstant

Message Reaction Removed

Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.

TriggerInstant

List Products

Tool to fetch all available products. Use when browsing products with optional paging and search. Call after authenticating with Appointo API.

ActionInstant

Reaction Added Trigger

DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.

TriggerInstant

List Subscription Contracts

Tool to list subscription contracts. Use when retrieving contracts with optional search after confirming a valid API token.

ActionInstant

Connect any two apps with Notis in the middle.

Slack and Appointo, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

Save your first hour today.

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No card. Works with personal or business Appointo.