Understand the full reaction signal
One reaction can be a cue to check how the whole team responded to a message.
Trigger
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Action
Fetch item reactions
Fetches reactions for a slack message, file, or file comment, requiring one of: channel and timestamp; file id; or file comment id.
Why this helps
Reading a single reaction without seeing others can lead to an incomplete view of team sentiment or acknowledgment.
- Shows the wider response on a message
- Adds context before a follow-up
- Reduces manual reaction checking
Setup
Build it in a few focused steps.
- 1Connect Slackbot and Slack to Notis once in the portal.
- 2Create an automation in the portal or ask Notis to inspect reactions on selected messages.
- 3Describe which added reactions should prompt a full reaction review.
- 4Select the reaction-added trigger and choose a channel for run reports.
- 5Test with one real reaction and confirm the action retrieves the message's reactions.
Questions about this workflow
Can the trigger be filtered by emoji?
Yes. The reaction-added trigger supports optional channel and emoji-name filtering.
Does fetching reactions change them?
No. Fetch item reactions is a read-only Slack action.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slackbot to Slack. A trigger fires from one place; an action lands in another.
Slackbot triggers
Slack actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
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.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
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.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Add call participants
Registers new participants added to a slack call.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
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.
Slackbot and Slack, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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