One Emoji Changes Priority: Slack Reactions Update Notion Tasks
A team member reacts with a fire emoji to signal urgency. Notis immediately updates the Notion task to 'critical' priority. No toggling between apps.
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 row database
Updates or archives an existing notion database row (page) using its `row id`, allowing modification of its icon, cover, and/or properties; ensure the target page is accessible and property details (names/ids and values) align with the database schema and specified formats.
Why this helps
Task priorities need to update as situations change, but neurodivergent founders struggle to keep Slack and Notion in sync. The friction of switching apps makes it easy to leave priorities stale and out of sync.
- Keep Notion priorities current without manual updates across apps
- Use lightweight Slack reactions to signal urgency instantly
- Reduce friction that prevents priority updates from happening
Setup
Build it in a few focused steps.
- 1Connect Slack and Notion to Notis in the portal.
- 2Tell Notis: 'When someone reacts to a Slack message with a fire emoji, find the related Notion task and update its priority to critical. For a star emoji, set it to high priority.'
- 3Select 'Message Reaction Added' as your trigger and specify the emojis you want to use.
- 4Point Notis to your Notion task database where priorities will be updated.
- 5Test by reacting to a Slack message related to a Notion task and verify the priority updates.
Questions about this workflow
Can I use different emojis to set different priority levels?
Yes. Set up the automation to use multiple emojis: 'fire' for critical, 'star' for high, 'clock' for urgent, etc. Each emoji triggers a different priority level.
What if I remove a reaction? Will it downgrade the priority?
You can tell Notis to watch for reaction removals too. Your prompt can say 'if the fire emoji is removed, drop priority back to normal.'
Can this work for other task properties besides priority?
Absolutely. Use different emojis for different properties: 'eyes' to mark something for review, 'bookmark' to flag for archiving, 'wave' to assign to someone.
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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