Automatically Comment on Linear Issues From External Webhooks
When feedback or updates arrive from external sources, Notis posts them as comments on your Linear issues automatically. Keep issue threads in sync with external data without manual copying.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Create a comment
Creates a new comment on a specified linear issue.
Why this helps
Feedback or updates from external tools often require manual copying into Linear issue comments, creating duplication and slowing down team communication.
- External feedback automatically appears as comments on Linear issues without manual copying
- Keep all issue-related communication in one place by routing external updates into Linear
- Reduce manual data entry by automating comment posting from webhooks
- Maintain a complete conversation thread across tools by centralizing in Linear
- Enable seamless collaboration when feedback comes from multiple sources
Setup
Build it in a few focused steps.
- 1In the Notis portal, create an automation with the prompt: 'When a webhook arrives with feedback data, post it as a comment on the Linear issue [specify how to match the issue].'
- 2Select 'Notis Webhook' as your trigger.
- 3Notis will provide a webhook URL for external tools to send data to.
- 4Configure your external tool to send feedback to that webhook URL.
- 5Test by sending webhook data and confirming the comment appears on the Linear issue.
Questions about this workflow
How do I specify which Linear issue to comment on?
Include an issue identifier in your webhook data (issue ID, URL, or title) and describe the matching in your prompt. Notis will find the right issue.
Can I format the comment content?
Yes. In your prompt, specify how to structure the comment, e.g., 'Format the comment as: Feedback from [source]: [message].'
What if multiple webhooks refer to the same issue?
Each webhook creates a separate comment. If you want batched comments, describe that in your prompt and Notis can batch updates by issue.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Sheets to Linear. A trigger fires from one place; an action lands in another.
Google Sheets triggers
Linear actions
Aggregate Metric Changed
Triggers when an aggregate metric (SUM/COUNT/AVG/MIN/MAX) changes in a Google Sheets spreadsheet. This trigger monitors an aggregate calculation on a target column (optionally filtered by a search column/value) and fires when the calculated result changes.
Create linear attachment
Creates a new attachment and associates it with a specific, existing linear issue.
Cell Range Values Changed
Triggers when values in a specified A1 range change in Google Sheets. This trigger monitors a specific cell or range of cells and fires when any values change.
Create a comment
Creates a new comment on a specified linear issue.
Conditional Format Rule Changed
Triggers when conditional formatting rules change in a Google Spreadsheet. Detects when rules are added, updated, or removed. Uses snapshot-based diffing to detect changes between polls.
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.
Data Validation Rule Changed
Triggers when data validation rules change (added/updated/removed) in a Google Spreadsheet. Uses snapshot-based diffing to detect changes between polls.
Get create issue default params
Fetches a linear team's default issue estimate and state, useful for pre-filling new issue forms.
Developer Metadata Changed
Triggers when developer metadata entries change (new/updated/removed) in a Google Spreadsheet. Uses snapshot-based diffing to detect changes between polls.
Create a label
Creates a new label in linear for a specified team, used to categorize and organize issues.
Filtered Range Values Changed
Polling trigger that monitors Google Sheets filtered ranges for value changes. Uses snapshot-based diffing to detect when values matching a data filter change. Emits the matched values when changes are detected.
Delete issue
Archives an existing linear issue by its id, which is linear's standard way of deleting issues; the operation is idempotent.
New Rows in Google Sheet
Simple polling trigger that monitors Google Sheets for new rows. Detects when new rows are added and returns the complete row data. Perfect for triggering any workflow based on new sheet entries.
Get all teams
Retrieves all teams from the linear workspace without requiring any parameters.
New Sheet Added in Google Spreadsheet
Polling trigger that detects when a new sheet is added to a Google Spreadsheet.
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 Google Sheets and Linear. Any combination from 985+ integrations.
When this happens · Trigger
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