New Notion project tasks auto-create Slack user groups
Managing user groups in Slack for each project is tedious. This automation watches for new major project tasks in Notion and creates a Slack user group instantly, so your team can be organized by initiative without manual setup.
Trigger
Page Created
Triggers when a new Notion page is created. Customer optionally scopes with at most one of: - data_source_id: new row in this data source - parent_page_id: new sub-page under this page (immediate parent only) With neither set, fires for any new page in the workspace the integration has access to. Notion sends ~60s aggregation latency on most events.
Action
Create a Slack user group
Creates a new user group (often referred to as a subteam) in a slack workspace.
Why this helps
Neurodivergent founders start multiple projects but forget to organize team members into corresponding Slack user groups. This leads to mentioning people individually repeatedly or using channel-wide mentions when a subset is relevant.
- Team groups are created immediately when projects are defined, without manual setup
- Reduces friction for mentioning project-specific subsets of your team
- Creates clear organizational structure that reflects your Notion project hierarchy
- Helps prevent culture of channel-wide mentions when specific mentions are more appropriate
Setup
Build it in a few focused steps.
- 1Connect your Notion task database and Slack account to Notis.
- 2Create an automation with the prompt: 'When a new page is added to my Projects database with a tag for team assignment, create a new Slack user group named after the project for coordinating that team.'
- 3Select 'New Page' as your trigger and scope to your projects database.
- 4Choose a Slack channel for notifications when user groups are created.
- 5Test by creating a new project task in Notion and verify a corresponding Slack user group is created.
Questions about this workflow
How are user group members populated?
The automation creates the empty group; you or your team members can self-assign to groups, or Notis can auto-add based on properties (like 'assigned_to' field in Notion).
What naming convention does Slack use for the new user group?
Notis converts the Notion project name to snake-case: 'Marketing Launch' becomes 'marketing-launch'. You can customize this in your automation prompt.
Can I automatically add specific people to each user group?
Yes. Tell Notis to 'add team members listed in the Notion project task to the new user group' if you've captured assignments in Notion properties.
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.
Connect any two apps with Notis in the middle.
Not just Notion and Slack. Any combination from 985+ integrations.
When this happens · Trigger
Do this · Action
Save your first hour today.
7 days free trial with 20$ free usage included.
No card. Works with personal or business Slack.