One Reaction Marks the Task Done: Slack Emoji to Notion Status Update
Your team reacts with a checkmark in Slack. Notis instantly marks the matching Notion task complete. No switching back to Notion, no manual status changes.
Trigger
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Action
Update Page
Tool to update the properties, icon, cover, or archive status of a page. use when you need to modify existing page attributes.
Why this helps
Neurodivergent founders risk losing the thread when they must manually sync task status across Slack and Notion. A team member says 'done' in Slack, but the Notion task still shows 'in progress' because updating it requires context-switching and remembering which task to find.
- One reaction instantly updates Notion, keeping both apps in sync with zero manual work
- Reduce context-switching friction that disrupts neurodivergent focus
- Create a lightweight, emoji-based completion signal that feels natural in Slack
Setup
Build it in a few focused steps.
- 1Connect Slack and Notion to Notis via the portal.
- 2Tell Notis: 'When someone reacts with a checkmark emoji to a Slack message, mark the matching Notion task as complete.'
- 3Select 'Message Reaction Added' as your trigger and pick the emoji (e.g., 'check_mark').
- 4Point Notis to your Notion task database where it will update the status property.
- 5Test by reacting to a Slack message that relates to one of your Notion tasks.
Questions about this workflow
How does Notis know which Notion task to update?
Your automation prompt tells Notis how to match the Slack message to the Notion task. For example, if the Slack message title or content matches a Notion task title, Notis finds the right row.
What if someone reacts accidentally?
Tell Notis to only update tasks when a specific person reacts, or only on certain channels. You control the filter in your plain-language prompt.
Can I use different emojis for different actions?
Yes. Set up multiple automations, each with a different emoji (e.g., 'check_mark' for done, 'eyes' for review, 'alarm_clock' for urgent), and Notis will handle each separately.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Notion. A trigger fires from one place; an action lands in another.
Slack triggers
Notion actions
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Add multiple content blocks (bulk, user-friendly)
Efficiently adds multiple standard content blocks to a notion page in a single api call with automatic markdown parsing. the 'content' field in notionrichtext blocks now automatically detects and parses markdown formatting including headers (# ## ###), bold (**text**), italic (*text*), strikethrough (~~text~~), inline code (`code`), links ([text](url)), and more. ideal for bulk content creation, ai agents, and replacing multiple individual add page content calls. supports automatic text formatting, content splitting, and up to 100 blocks per request.
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 content to Notion page
Deprecated: appends a single content block to a notion page or a parent block (must be page, toggle, to-do, bulleted/numbered list, callout, or quote); invoke repeatedly to add multiple blocks.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Append complex blocks (advanced, full control)
Appends complex blocks with full notion block structure to a parent block or page. use for advanced scenarios requiring precise control: code blocks, tables, embeds, nested children within blocks, or when working with pre-built notion block objects. requires full notion api block schema - use add multiple page content for simpler content creation.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Archive Notion Page
Archives (moves to trash) or unarchives (restores from trash) a specified notion page.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Create comment
Adds a comment to a notion page (via `parent page id`) or to an existing discussion thread (via `discussion id`); cannot create new discussion threads on specific blocks (inline comments).
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Create Notion Database
Creates a new notion database as a subpage under a specified parent page with a defined properties schema; use this action exclusively for creating new databases.
Reaction Removed Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_REMOVED` instead. Triggered when a reaction is removed from a message.
Create Notion page
Creates a new empty page in a notion workspace.
New Bot Message Received Trigger
DEPRECATED: use `SLACK_CHANNEL_MESSAGE_RECEIVED` with `is_bot_message=true` instead. Triggered when a new bot message is posted to a Slack channel.
Delete a block
Archives a notion block, page, or database using its id, which sets its 'archived' property to true (like moving to "trash" in the ui) and allows it to be restored later.
Connect any two apps with Notis in the middle.
Not just Slack and Notion. Any combination from 985+ integrations.
When this happens · Trigger
Do this · Action
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