External Systems Update Your Linear Issues
Data changes in external systems (billing, analytics, scheduling), but your Linear issues stay outdated. Notis webhooks let external systems push updates directly to Linear automatically.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Update issue
Updates an existing linear issue using its `issue id`; requires at least one other attribute for modification, and all provided entity ids (for state, assignee, labels, etc.) must be valid.
Why this helps
Neurodivergent founders struggle when multiple systems of record exist. Changes in one system don't reflect in Linear, creating duplicated work and outdated information.
- Keep Linear automatically synchronized with external systems
- Eliminate manual data transfer between tools
- Ensure your team always sees current information
- Build a single source of truth across tools
Setup
Build it in a few focused steps.
- 1Connect your Linear workspace to Notis.
- 2Ask Notis: 'Give me a webhook that bulk-updates Linear issues when external data changes' or use the portal.
- 3Notis provides a unique webhook URL. Configure your external system to POST updates to this URL.
- 4Provide the prompt: 'When you receive a webhook with issue IDs and update fields, update those Linear issues with the new data.'
- 5Test by triggering an update in your external system and verify it appears in Linear.
Questions about this workflow
Can I update different Linear fields based on webhook data?
Yes. Use your prompt to map webhook fields to Linear fields (e.g., 'Set status to Done if external_status is complete').
What if a webhook tries to update an issue that doesn't exist?
You can configure Notis to create the issue, skip it, or log an error depending on your needs.
Does this handle partial updates?
Yes. Notis only updates the fields you specify, leaving other fields unchanged.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Linear. A trigger fires from one place; an action lands in another.
Slack triggers
Linear actions
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Create linear attachment
Creates a new attachment and associates it with a specific, existing linear issue.
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 a comment
Creates a new comment on a specified linear issue.
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 linear issue
Creates a new issue in a specified linear project and team, requiring a title and description, and allowing for optional properties like assignee, state, priority, cycle, and due date.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Get create issue default params
Fetches a linear team's default issue estimate and state, useful for pre-filling new issue forms.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Create a label
Creates a new label in linear for a specified team, used to categorize and organize issues.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Delete issue
Archives an existing linear issue by its id, which is linear's standard way of deleting issues; the operation is idempotent.
Reaction Removed Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_REMOVED` instead. Triggered when a reaction is removed from a message.
Get all teams
Retrieves all teams from the linear workspace without requiring any parameters.
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.
Download issue attachments
Downloads a specific attachment from a linear issue; the `file name` must include the correct file extension.
Connect any two apps with Notis in the middle.
Not just Slack and Linear. Any combination from 985+ integrations.
When this happens · Trigger
Do this · Action
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