Add a watermark when Slack flags a sensitive file
When someone flags a Box document for careful handling in Slack, Notis can apply a watermark to reinforce the team's review process.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
Apply watermark to file
Applies or update a watermark on a file.
Why this helps
Sensitive files can be shared before anyone remembers to add a visual handling safeguard.
- Connect a clear sensitivity flag to a file-handling step.
- Reduce reliance on remembering watermarking manually.
- Make the watermark action easier to include in a documented process.
Setup
Build it in a few focused steps.
- 1Connect Slack and Box to Notis once through the portal.
- 2Create an automation and describe which Slack flags should result in a Box file watermark.
- 3Choose the channel message received trigger and specify how to identify the file and appropriate watermark behavior.
- 4Pick a channel for run reports and test with a real, approved example.
Questions about this workflow
Will this classify the file too?
No. This workflow applies a watermark; classification is a separate Box action.
Should every sensitive mention trigger it?
Use a narrow prompt so Notis acts only on explicit flags that identify the intended Box file.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Box. A trigger fires from one place; an action lands in another.
Slack triggers
Box actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Add classification to file
Adds a classification to a file by specifying the label of the classification to add. this api can also be called by including the enterprise id in the url explicitly, for example `/files/:id//enterprise 12345/securityclassification-6vmvochwuwo`.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Add classification to folder
Adds a classification to a folder by specifying the label of the classification to add. this api can also be called by including the enterprise id in the url explicitly, for example `/folders/:id/enterprise 12345/securityclassification-6vmvochwuwo`.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Add domain to list of allowed collaboration domains
Creates a new entry in the list of allowed domains to allow collaboration for.
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 initial classifications
When an enterprise does not yet have any classifications, this api call initializes the classification template with an initial set of classifications. if an enterprise already has a classification, the template will already exist and instead an api call should be made to add additional classifications.
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 or update user avatar
Adds or updates a user avatar.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Add shared link to file
Adds a shared link to a file.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Add shared link to folder
Adds a shared link to a folder.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Add shared link to web link
Adds a shared link to a web link.
Connect any two apps with Notis in the middle.
Slack and Box, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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