Recheck event details after a Slack reaction changes
A changed reaction can be a useful cue to revisit the event record before plans move on.
Trigger
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Action
List Events
Tool to retrieve a list of events associated with your account (supports filtering). use when you need to list or filter events for your organization.
Why this helps
A shift in team sentiment can be easy to miss, leaving event details or assumptions unreviewed.
- Use a changed reaction as a cue for a fresh event lookup.
- Bring relevant event details back into the planning flow.
- Help the team notice when an earlier signal has changed.
Setup
Build it in a few focused steps.
- 1Connect Slack and Eventzilla to Notis once in the portal.
- 2Create an automation with one instruction to retrieve the related Eventzilla event when a planning message reaction is removed.
- 3Select Message Reaction Removed as the trigger.
- 4Choose a channel for run reports and test by removing a reaction from a real planning message.
Questions about this workflow
Does removing a reaction mean the event should be canceled?
No. It only triggers an event lookup; the team decides what the changed signal means.
Can the trigger be limited to a certain emoji?
The Slack trigger supports optional channel and emoji filtering.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Eventzilla. A trigger fires from one place; an action lands in another.
Slack triggers
Eventzilla actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Get User Details
Tool to retrieve detailed information of a specific user. use after listing users to fetch full profile.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
List Event Categories
Tool to retrieve event categories available in eventzilla. use when you need to present or choose from available categories before creating or filtering events.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
List Events
Tool to retrieve a list of events associated with your account (supports filtering). use when you need to list or filter events for your 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.
List Users
Tool to retrieve a list of users associated with your account. use when you need to fetch and paginate through users.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Connect any two apps with Notis in the middle.
Slack and Eventzilla, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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