Trigger Reminders From Custom Canvas Workflows
You have a script that monitors Canvas for specific patterns (late submissions, incomplete grades, keyword matches). Send those events to Notis via webhook to create Slack reminders in real-time. Build complex automations without rebuilding integrations.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Create a reminder
Creates a slack reminder with specified text and time; time accepts unix timestamps, seconds from now, or natural language (e.g., 'in 15 minutes', 'every thursday at 2pm').
Why this helps
Standard Canvas events don't cover your unique workflow. You want granular alerts (e.g., 'remind me when submissions are 48 hours from deadline' or 'alert me about submissions with specific keywords') but no trigger exists for these custom patterns.
- Detect and alert on custom Canvas patterns
- Unlimited flexibility beyond standard events
- Real-time notifications for edge cases
- No code needed—plain language configuration
Setup
Build it in a few focused steps.
- 1Connect Canvas and Slack.
- 2Create Automation: Name ('Custom Reminders'), Prompt ('When I send a webhook with Canvas event details, create a Slack reminder for me to act on it'), Channel (your personal or team channel), Trigger ('notis_webhook').
- 3Your external scripts and tools can now POST Canvas events to Notis and get Slack reminders instantly.
Questions about this workflow
How detailed can the webhook payload be?
JSON payloads can be as detailed as you need. Notis parses relevant fields and creates clear reminders.
What if I need the reminder at a specific time?
Include timing details in the webhook (e.g., 'remind me in 2 hours' or 'remind me tomorrow at 9am').
Can I create multiple reminders from one webhook?
Yes—your prompt can instruct Notis to create multiple reminders or other Slack actions from a single event.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Canvas to Slack. A trigger fires from one place; an action lands in another.
Canvas triggers
Slack actions
Canvas Assignment Graded
Polls Canvas for newly graded submissions for a specific assignment.
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
New Canvas Assignment Submission
Polls Canvas for new submissions to a specific assignment.
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 Canvas Discussion Message
Polls Canvas discussion topics for new messages.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
New Canvas Discussion Topic
Polls a Canvas course for new discussion topics.
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.
New Course Created for User
Polls Canvas for newly created courses for a specific user.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
New Canvas File Upload
Polls a Canvas course for new file uploads.
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.
Not just Canvas and Slack. Any combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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