How to Send ClickUp Comment Alerts to Slack with Power Automate

My flows > New flow > Automated cloud flow

Create a new automated flow

Go to make.powerautomate.com and click My flows in the left sidebar. Click New flow, then select Automated cloud flow. Name it 'ClickUp Comments to Slack' and leave the trigger selection for the next step.

1. 1Click My flows in the left navigation
2. 2Click the New flow button
3. 3Select Automated cloud flow
4. 4Type 'ClickUp Comments to Slack' as the flow name
5. 5Click Skip on the trigger selection screen

Flow designer > Choose your flow's trigger

Add the HTTP request trigger

Click the trigger box and search for 'HTTP'. Select 'When a HTTP request is received' from the results. This creates a webhook endpoint that ClickUp will call when comments are added.

1. 1Click the trigger box labeled 'Choose your flow's trigger'
2. 2Type 'HTTP' in the search bar
3. 3Select 'When a HTTP request is received'
4. 4Leave the JSON schema blank for now

Flow designer > Save

Save to generate webhook URL

Click Save in the top toolbar. Power Automate generates a unique webhook URL that appears in the HTTP trigger box. Copy this URL — you'll need it for ClickUp's webhook configuration.

1. 1Click Save in the top toolbar
2. 2Wait for the save confirmation
3. 3Click into the HTTP trigger step
4. 4Copy the HTTP POST URL that appears

ClickUp Settings > Integrations > Webhooks

Configure ClickUp webhook

In ClickUp, go to your workspace settings and find Integrations. Click Webhooks, then Create Webhook. Set the endpoint to your Power Automate URL and select 'Task Comment Posted' as the event.

1. 1Open ClickUp and click your workspace name in the top left
2. 2Select Settings from the dropdown
3. 3Click Integrations in the left sidebar
4. 4Click the Webhooks tab
5. 5Click Create Webhook
6. 6Paste your Power Automate URL in the Endpoint field
7. 7Check 'taskCommentPosted' in the Events list
8. 8Click Create Webhook

ClickUp > Any Task > Comments

Test the webhook

Go to any ClickUp task and add a comment. This sends test data to your Power Automate flow. Check the flow's run history to see the incoming JSON structure from ClickUp.

1. 1Open any ClickUp task in your workspace
2. 2Scroll to the comments section
3. 3Type a test comment like 'Testing webhook'
4. 4Click Post Comment
5. 5Return to Power Automate and refresh the page

Flow runs > Failed run > HTTP trigger

Add JSON schema

Click on the failed run in your flow history to see the JSON payload ClickUp sent. Copy this JSON, go back to your HTTP trigger, and click 'Use sample payload to generate schema'. Paste the JSON and click Done.

1. 1Click on the most recent failed run
2. 2Expand the HTTP trigger step
3. 3Copy the entire JSON from the Body section
4. 4Click Edit on your flow
5. 5In the HTTP trigger, click 'Use sample payload to generate schema'
6. 6Paste the JSON and click Done

Flow designer > New step > Slack

Add Slack connection

Click New step below your trigger. Search for 'Slack' and select 'Post message' action. Power Automate prompts you to sign in to Slack and authorize the connection.

1. 1Click New step below the HTTP trigger
2. 2Type 'Slack' in the connector search
3. 3Select the Slack connector
4. 4Choose 'Post message' action
5. 5Click Sign in when prompted
6. 6Authorize Power Automate in Slack

Slack action > Channel field

Configure channel selection

In the Channel field, click the dropdown to see your Slack channels. Select the project channel where you want comment notifications. If it doesn't appear, type the channel name manually with # prefix.

1. 1Click the Channel dropdown in the Slack action
2. 2Select your target channel from the list
3. 3If not listed, type the channel name like '#project-alpha'

Slack action > Message field > Dynamic content

Map comment data to message

Click in the Message field and build your notification using dynamic content. Add the commenter's name, task name, comment text, and task URL. Use the lightning bolt icon to insert fields from the ClickUp webhook data.

1. 1Click in the Message field
2. 2Type 'New comment by '
3. 3Click the lightning bolt icon and select the commenter name field
4. 4Add line breaks and type 'Task: '
5. 5Insert the task name from dynamic content
6. 6Add 'Comment: ' and insert the comment text
7. 7Add the task URL for quick access

Flow designer > Save

Test the complete flow

Save your flow and add another comment to the same ClickUp task. The flow should run successfully and post a formatted message to your Slack channel within 30 seconds.

1. 1Click Save in the top toolbar
2. 2Go back to your ClickUp task
3. 3Add another test comment
4. 4Check your Slack channel for the notification
5. 5Verify the message formatting looks correct

Add this expression in the Message field to format timestamps and handle missing task URLs gracefully. Paste it using the Expression tab in dynamic content.

concat(
  'New comment by ', 
  body('Parse_JSON')?['history_items']?[0]?['user']?['username'],

concat(
  'New comment by ', 
  body('Parse_JSON')?['history_items']?[0]?['user']?['username'],
  '\n\nTask: ',
  body('Parse_JSON')?['task']?['name'],
  '\n\nComment: ',
  body('Parse_JSON')?['history_items']?[0]?['comment']?['text_content'],
  '\n\n',
  if(empty(body('Parse_JSON')?['task']?['url']), 'No task link available', body('Parse_JSON')?['task']?['url'])
)