Emoji Reactions, Automatic Labels
You start using a new emoji reaction in Slack (e.g., 'idea', 'urgent', 'done'). Notis watches and automatically creates matching Gmail labels, so your reaction system scales effortlessly.
Trigger
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Action
Create label
Creates a new label with a unique name in the specified user's gmail account.
Why this helps
You'd like to use emoji reactions in Slack as organizational signals, but setting up labels in Gmail for each one is tedious. Most reactions go unmapped.
- Let your organization system grow naturally with reactions
- Zero overhead for creating new labels
- Scale your emoji system to Gmail without extra work
- Encourage team creativity in reactions and tagging
Setup
Build it in a few focused steps.
- 1Connect Slack and Gmail.
- 2Create an automation: 'When I add a reaction I haven't used before in Slack, create a matching Gmail label.'
- 3Notis will detect new emoji and create labels with a consistent naming pattern.
- 4Test by using a new emoji reaction on a message; Notis will create the label.
Questions about this workflow
Will every emoji create a label?
You can exclude built-in emojis (like 'laughing') or reactions you don't want mapped. Configure the filter once.
Can I customize the label naming?
Yes. Tell Notis to prepend 'Reaction: ' or use any other pattern you prefer.
What if I use an emoji I later regret?
Delete the label in Gmail. Notis won't recreate it unless you use the emoji again.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Gmail. A trigger fires from one place; an action lands in another.
Slack triggers
Gmail actions
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Modify email labels
Adds and/or removes specified gmail labels for a message; ensure `message id` and all `label ids` are valid (use 'listlabels' for custom label ids).
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Create email draft
Creates a gmail email draft, supporting to/cc/bcc, subject, plain/html body (ensure `is html=true` for html), attachments, and threading.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Create label
Creates a new label with a unique name in the specified user's gmail account.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Delete Draft
Permanently deletes a specific gmail draft using its id; ensure the draft exists and the user has necessary permissions for the given `user id`.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Delete message
Permanently deletes a specific email message by its id from a gmail mailbox; for `user id`, use 'me' for the authenticated user or an email address to which the authenticated user has delegated access.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Fetch emails
Fetches a list of email messages from a gmail account, supporting filtering, pagination, and optional full content retrieval.
Reaction Removed Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_REMOVED` instead. Triggered when a reaction is removed from a message.
Fetch message by message ID
Fetches a specific email message by its id, provided the `message id` exists and is accessible to the authenticated `user id`.
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.
Fetch Message by Thread ID
Retrieves messages from a gmail thread using its `thread id`, where the thread must be accessible by the specified `user id`.
Connect any two apps with Notis in the middle.
Not just Slack and Gmail. Any combination from 985+ integrations.
When this happens · Trigger
Do this · Action
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