How to Send ClickUp Task Status Alerts to Slack with N8n

Dashboard > New Workflow

Create N8n Workflow

Start a new workflow in N8n to handle ClickUp task status changes. You'll build a webhook-triggered flow that filters for specific statuses and posts to Slack.

1. 1Click 'New Workflow' from the N8n dashboard
2. 2Rename the workflow to 'ClickUp Status Alerts'
3. 3Save the workflow before adding nodes

Workflow Canvas > + > Webhook

Add Webhook Trigger

Configure a webhook node to receive ClickUp task updates. This creates an endpoint URL that ClickUp will POST to whenever tasks change status.

1. 1Click the '+' button and search for 'Webhook'
2. 2Select the 'Webhook' trigger node
3. 3Set HTTP Method to 'POST'
4. 4Leave Authentication as 'None'
5. 5Copy the webhook URL from the node

ClickUp Settings > Integrations > Webhooks

Configure ClickUp Webhook

Set up ClickUp to send task status changes to your N8n webhook. You'll configure this at the workspace level to catch all task updates.

1. 1Open ClickUp and go to Settings > Integrations > Webhooks
2. 2Click 'Create Webhook'
3. 3Paste your N8n webhook URL in the Endpoint field
4. 4Check 'taskUpdated' under Events
5. 5Select your target workspace from the dropdown

Workflow Canvas > + > Logic > IF

Add Status Filter Node

Filter incoming webhooks to only process tasks that moved to 'Ready for Review' or 'Blocked' status. This prevents spam notifications for every task change.

1. 1Add an 'IF' node after the webhook
2. 2Set condition to 'String' > 'is equal to'
3. 3Enter {{ $json.task.status.status }} in the Value 1 field
4. 4Enter 'ready for review' in Value 2 field
5. 5Click 'Add Condition' and repeat for 'blocked' status

Workflow Canvas > + > ClickUp > Credentials

Add ClickUp Credentials

Connect N8n to ClickUp to fetch additional task details like assignee names and project info that aren't included in webhook payloads.

1. 1Add a 'ClickUp' node after the IF node (True branch)
2. 2Click 'Create New Credential'
3. 3Select 'Personal Token' authentication
4. 4Generate an API token in ClickUp Settings > Apps > API Token
5. 5Paste the token and save the credential

ClickUp Node > Task > Get

Fetch Task Details

Use the ClickUp node to get complete task information including assignee, project, and formatted URLs for the Slack message.

1. 1Set Operation to 'Get' and Resource to 'Task'
2. 2Map Task ID to {{ $json.task.id }} from the webhook
3. 3Enable 'Include Subtasks' if you want subtask notifications
4. 4Test this node to verify it returns full task data

Workflow Canvas > + > Logic > IF

Determine Slack Channel

Route notifications to the correct Slack channel based on task project or status. Different teams often want alerts in different channels.

1. 1Add another 'IF' node to check project or custom field values
2. 2Set condition to check {{ $json.project.name }} or task status
3. 3Map 'Ready for Review' tasks to '#reviews' channel
4. 4Map 'Blocked' tasks to '#urgent' or project-specific channel

api.slack.com/apps > OAuth & Permissions

Add Slack Credentials

Connect N8n to your Slack workspace to enable message posting. You'll need a bot token with chat:write permissions.

1. 1Go to api.slack.com/apps and create a new app
2. 2Add 'chat:write' and 'chat:write.public' OAuth scopes
3. 3Install the app to your workspace and copy the Bot User OAuth Token
4. 4In N8n, add Slack credentials using the bot token

Slack Node > Message > Post

Format Slack Message

Create a rich Slack message with task details, assignee mentions, and action buttons. Use Slack's Block Kit format for better presentation.

1. 1Add a 'Slack' node and set Operation to 'Post Message'
2. 2Select your target channel (e.g., '#reviews')
3. 3Build message text with task title, status, and assignee
4. 4Add the task URL as a button or link in the message

Workflow > Activate > ClickUp Task Status Change

Test the Workflow

Activate the workflow and test it with a real ClickUp task status change. This verifies the webhook, filters, and Slack posting work end-to-end.

1. 1Click 'Save' and then 'Activate' workflow toggle
2. 2Go to ClickUp and change a task status to 'Ready for Review'
3. 3Check the N8n execution log for successful runs
4. 4Verify the Slack notification appears in the correct channel

Workflow Canvas > + > Error Trigger

Add Error Handling

Configure error handling to retry failed Slack posts and log issues without breaking the entire workflow.

1. 1Add an 'Error Trigger' node to catch failures
2. 2Connect it to a 'Slack' node that posts to an admin channel
3. 3Set up retry logic with exponential backoff for API failures
4. 4Test error handling by temporarily breaking the Slack token

Workflow Settings > Execution Limit

Configure Rate Limiting

Add delays and batching to handle high-volume task updates without hitting API limits. Both ClickUp and Slack have rate limits you need to respect.

1. 1Add a 'Wait' node with 1-2 second delay between Slack posts
2. 2Set workflow execution limit to 10 concurrent runs maximum
3. 3Configure exponential backoff for 429 rate limit responses
4. 4Monitor execution logs for rate limit warnings

Drop this into an n8n Code node.

// Deduplicate rapid status changes in code node
const recent = $('Webhook').all().filter(item => {
  const timestamp = new Date(item.json.event.date).getTime();

// Deduplicate rapid status changes in code node
const recent = $('Webhook').all().filter(item => {
  const timestamp = new Date(item.json.event.date).getTime();
  const now = Date.now();
  return (now - timestamp) < 30000; // 30 second window
});

if (recent.length > 1) {
  return []; // Skip duplicate
}
return $input.all();