Get daily Slack reminders for approaching Notion task deadlines
Deadlines sneak up on neurodivergent founders because executive dysfunction makes it hard to track time intuitively. This automation checks your Notion tasks every morning and creates a Slack reminder for each one approaching its deadline, so you're nudged before the deadline surprise hits.
Trigger
Recurring schedule
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
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 often experience time blindness. Deadlines feel distant until they're suddenly urgent, causing last-minute panic and rushed work that damages quality.
- Deadlines feel real when you're reminded repeatedly, not just silently approaching in Notion
- Distributed reminders spread work over time instead of creating one big panicked push
- Reduces last-minute work quality and burnout from deadline crunches
- Gives you time to rescope or ask for help instead of discovering a missed deadline day-of
Setup
Build it in a few focused steps.
- 1Connect your Notion task database and Slack account to Notis.
- 2Create an automation with the prompt: 'Every morning at 9am, find all tasks in my Task database with a deadline in the next 7 days and create a Slack reminder for each one, due 2 days before its deadline.'
- 3Select 'Recurring Schedule' as your trigger kind.
- 4Choose a Slack channel for workflow reports.
- 5Test by manually triggering the automation and verifying reminders appear for approaching deadlines.
Questions about this workflow
When should reminders appear relative to the deadline?
Adjust your prompt: 'create reminders 3 days before', '5 days before', or 'every day until the deadline'. Find what works for your pace.
Will I get reminders for tasks already completed?
Tell Notis to filter for incomplete tasks: 'only create reminders for tasks marked incomplete or in-progress'.
What if I have 20 tasks due this week?
You'll get 20 reminders, which might feel overwhelming. You can filter to 'only high-priority tasks' or 'only tasks I'm the owner of'.
When this happens · Trigger
Do this · Action
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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