Mark the Slack thread that needs an alt text check
When a submitted result includes a Slack channel, message timestamp, and chosen emoji, add the review reaction to that message.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
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.
Why this helps
Review work is easy to miss when the relevant Slack conversation has no visible status cue.
- Make the review request stand out in the original conversation
- Keep the status cue beside the relevant discussion
- Avoid posting a separate status update
Setup
Build it in a few focused steps.
- 1Connect AltTextLab and Slack once in the Notis portal.
- 2Create an automation in Automations, New Automation, and name it.
- 3Tell Notis to add the provided emoji reaction to the related Slack message using its channel and timestamp.
- 4Choose the webhook trigger and where run reports should go.
- 5Test with one real Slack message reference and an emoji available in the workspace.
Questions about this workflow
What message details are required?
The request needs the Slack channel, message timestamp, and reaction emoji.
Does the reaction create a new Slack message?
No. It adds a reaction to the existing message.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link AltTextLab to Slack. A trigger fires from one place; an action lands in another.
AltTextLab 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.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
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.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Add call participants
Registers new participants added to a slack call.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
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.
AltTextLab and Slack, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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