Keep Slack link previews aligned with the source page
When a page changes, refresh the preview attached to the Slack message that shared it.
Trigger
Recurring schedule
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Action
Customize URL unfurl
Customizes url previews (unfurling) in a specific slack message using a url-encoded json in `unfurls` to define custom content or remove existing previews.
Why this helps
A Slack link preview can become outdated after the source page changes, leaving readers with misleading context.
- Keep message previews consistent with the current page.
- Reduce confusion from outdated link summaries.
- Update the original Slack message context instead of reposting it.
Setup
Build it in a few focused steps.
- 1Connect Anchor browser and Slack once in Notis.
- 2Create an automation in plain language or open Automations, then choose New Automation.
- 3Specify the source page and Slack message, then describe how to use the page's current information to customize that message's unfurl.
- 4Choose a recurring Notis schedule and select a channel for run reports.
- 5Test with one page and message, and verify the preview content before routine runs.
Questions about this workflow
What does this action change?
It customizes the URL preview in a specific Slack message using unfurl data. The message reference and preview details must be available.
Can it remove an outdated preview?
The action supports defining custom content or removing existing previews, according to the data supplied.
Will the preview update automatically if the page changes again?
Only when the scheduled automation runs and the task determines an update is needed.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Anchor browser to Slack. A trigger fires from one place; an action lands in another.
Anchor browser 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.
Anchor browser and Slack, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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