High-priority Notion tasks trigger automatic Slack reminders
High-priority tasks created in Notion are often urgent, but executive dysfunction makes it hard to switch to them immediately. This automation creates a Slack reminder so you're nudged to start when you're ready.
Trigger
New Page
Triggers when a new page is added to a Notion database.
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
Neurodivergent founders struggle with task initiation, especially for urgent items. A high-priority task created at the wrong moment can sit unstarted for hours or days if no reminder surfaces it.
- High-priority tasks trigger reminders automatically, removing self-management burden
- Reminders appear when your brain might be in a better state to start work
- No more high-priority tasks quietly sitting in a Notion database unnoticed
- Reduces the guilt and stress of forgetting about urgent work
Setup
Build it in a few focused steps.
- 1Connect your Notion database and Slack workspace to Notis.
- 2Create an automation with the prompt: 'When a new page is added to my Task database with Priority set to High, create a Slack reminder for me in 15 minutes to start this task.'
- 3Select 'New Page' as your trigger and scope to your task database.
- 4Choose your Slack channel for workflow reports.
- 5Test by creating a new Notion task with priority set to High and verify a Slack reminder appears.
Questions about this workflow
When should the reminder appear?
You decide. Tell Notis 'in 15 minutes', 'in 1 hour', 'tomorrow at 10am', or 'in 30 minutes every time'. Use timing that matches when you're typically ready to start work.
What if I don't want a reminder for every high-priority task?
You can refine your prompt to say 'only create reminders for high-priority tasks with deadline this week' or 'only for tasks assigned to me'.
Can I snooze reminders in Slack?
Yes. Slack reminders can be snoozed directly in the app, giving you control when you want to revisit the task later.
When this happens · Trigger
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Supported Triggers and Actions
Notis builds workflows that link Notion to Slack. A trigger fires from one place; an action lands in another.
Notion triggers
Slack actions
All Page Events
Triggers when any Notion page is created or updated across the workspace.
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
Comment Created
Triggers when a new comment is created in Notion. Optional `page_id` filter scopes to comments on a specific page. When omitted, fires for any new comment in the workspace the integration has access to. Requires the 'Read comments' capability on the Notion integration. If a connection was authorized before that capability was enabled, the user must re-authorize the connection for comment events to flow.
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 Comment
Triggers when a new comment is added to a specified Notion block or page.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
Database Created
Triggers when a new Notion database (the container) is created. A database is the post-2025-09-03 container that holds one or more data sources. This trigger fires for the container's creation event (`database.created`), distinct from `NOTION_DATASOURCE_CREATED` which fires when a new data source is added to an existing database. Most customers calling Notion's `POST /v1/databases` (the legacy API) or creating a database via the Notion UI will see this event. Adding a new data source to an existing database fires `data_source.created` instead — use `NOTION_DATASOURCE_CREATED` for that. Notion's payload puts `entity.type: "block"` (the container is a `child_database` block in the content tree) and `entity.id` is the database id.
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.
Data Source Created
Triggers when a new Notion data source is created. Fires workspace-wide. The payload's `data.parent` carries the data source's tree parent (typically the teamspace) for downstream filtering. A single template-based database creation can fire multiple `data_source.created` events at once — one per data source the template instantiates.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Data Source Schema Updated
Triggers when a Notion data source's schema is updated. Fires on column add / remove / rename. Payload includes `data.updated_properties: [{id, name, action}]` so consumers can discriminate the kind of change downstream. Optional `data_source_id` filter scopes to schema changes on a single data source. When omitted, fires for any schema change in the workspace the integration has access to. Note: adding a column also fires `page.properties_updated` once per existing row in the data source. Customers wanting a single structural-change signal should use this trigger.
Add call participants
Registers new participants added to a slack call.
New Page
Triggers when a new page is added to a Notion database.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
Page Added to Page
Fires when a new subpage (a `child_page` type block) is added under a specified parent Notion page.
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.
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