🎣 Add LinkedIn post commenters to HubSpot CRM with Apify enrichment

⚡ 88 views · 🎣 Lead Generation & Enrichment

💡 Pro Tip — If you’re pulling LinkedIn data through HTTP requests or dealing with API restrictions, there’s a community node called ScraperNode that handles this natively. It has dedicated scrapers for profiles, companies, jobs, and people search — you just pass a URL and get structured data back.

Description

Add LinkedIn Post Commenters to HubSpot CRM

Who’s it for

This workflow is built for content creators, sales professionals, founders, and marketers who post regularly on LinkedIn and want to convert engaged commenters into CRM leads automatically. Perfect for anyone who gets decent engagement on their posts but struggles to manually capture and follow up with everyone who comments.

If you’re running thought leadership campaigns, generating inbound interest through content, or simply want to build relationships with people who engage with your posts, this automation captures every commenter and enriches them with full professional data before syncing to your CRM.

How it works

The workflow automatically captures LinkedIn post commenters and adds them to HubSpot CRM with enriched professional data.

The process flow:

Submit a LinkedIn post URL via a simple form trigger
ConnectSafely.ai fetches all comments from the specified post
Splits commenters into individual records for processing
Loops through each commenter one at a time
Apify actor enriches each profile with complete LinkedIn data (email, company, title, location)
Email validation filters contacts - only those with valid emails proceed
HubSpot integration creates or updates contacts with full enriched information
Loop continues until all commenters are processed

Watch the complete step-by-step implementation guide:

Setup steps

Step 1: Install the ConnectSafely Community Node

This workflow requires the ConnectSafely community node, which is only available on self-hosted n8n instances.

In n8n, go to Settings → Community Nodes
Click Install a community node
Enter: n8n-nodes-connectsafely-ai
Click Install
Restart n8n if prompted

Note: Community nodes are not available on n8n Cloud. You’ll need a self-hosted instance.

Step 2: Configure ConnectSafely.ai API Credentials

Obtain API Key

Create an account at ConnectSafely.ai
Connect your LinkedIn account in the dashboard
Navigate to Settings → API Keys
Generate a new API key

Add Credential in n8n

Go to Credentials in n8n
Click Add Credential → Search for ConnectSafely API
Paste your API key
Save the credential

Connect to the Node

Open the 🔍 Fetch All Comments node
Select your ConnectSafely API credential

Step 3: Configure Apify Integration

Get Apify API Key

Sign up at Apify.com
Go to Settings → Integrations → API
Copy your API token

Add Apify Credential in n8n

Go to Credentials → Add Credential → Apify API
Paste your Apify API token
Save the credential

Configure the Apify Node

Open the Run an Actor and get dataset node
Select your Apify credential
The actor URL is pre-configured to use the LinkedIn enrichment actor: https://console.apify.com/actors/UMdANQyqx3b2JVuxg

Step 4: Configure HubSpot Integration

Create HubSpot App Token

Go to HubSpot Settings → Integrations → Private Apps
Click Create a private app
Name it “n8n LinkedIn Commenters Sync”
Under Scopes, enable:
- crm.objects.contacts.read
- crm.objects.contacts.write
Click Create app and copy the access token

Add HubSpot Credential in n8n

Go to Credentials → Add Credential → HubSpot App Token
Paste your access token
Save the credential

Connect to HubSpot Node

Open the Create or update a contact node
Select your HubSpot App Token credential

Step 5: Test the Workflow

Click Test Workflow to get the form URL
Open the form URL in your browser
Paste a LinkedIn post URL that has comments
Submit the form
Verify:
- Comments are fetched correctly
- Enrichment returns full profile data
- Contacts with emails are created in HubSpot
- Contacts without emails are skipped gracefully

Customization

Additional HubSpot Fields

The Create or update a contact node maps these fields by default:

First Name
Last Name
Email
Job Title
Company Name
City
Country
Street Address

To add more fields:

Open the Create or update a contact node
Click Add Field under Additional Fields
Map Apify output fields to HubSpot properties

Available Apify fields include:

06_Linkedin_url - LinkedIn profile URL
07_Title - Current job title
08_Summary - Profile summary
16_Company_name - Current company
17_Company_industry - Industry

Add Lead Source Tracking

To track that these contacts came from LinkedIn comments:

Open the Create or update a contact node
Add a custom field: leadSource = LinkedIn Post Comment
Optionally add the post URL as a note

Filter by Comment Quality

Want to skip low-effort comments like “Great post!” or emoji-only responses?

Add an IF node after 📤 Split Comments Array
Filter based on comment text length or content
Only process comments with meaningful engagement

Different CRM Integration

To use a different CRM instead of HubSpot:

Delete the Create or update a contact node
Add your CRM node (Salesforce, Pipedrive, Zoho, etc.)
Map the enriched fields to your CRM’s contact properties
Connect it to the “Check if Contact is eligible” true output

Add Slack Notifications

Get notified when high-value commenters are captured:

Add a Slack node after Create or update a contact
Filter for specific job titles (VP, Director, CEO, etc.)
Send a message to your sales channel with commenter details

Use Cases

Content-Led Sales: Automatically capture decision-makers who engage with your thought leadership posts
Event Promotion: Sync everyone who comments on event announcements to your follow-up list
Product Launches: Build a list of interested prospects from launch announcement engagement
Recruiting: Capture professionals who engage with hiring posts or company culture content
Community Building: Track engaged community members across multiple posts over time

Troubleshooting

Common Issues & Solutions

Issue: ConnectSafely node not appearing in n8n

Solution: Restart n8n after installing the community node. If still missing, verify the installation in Settings → Community Nodes.

Issue: “Comments not loading” or empty results

Solution: Ensure the post URL is the full URL from LinkedIn (e.g., https://www.linkedin.com/posts/username_activity-1234567890/), not a shortened version. Also verify the post actually has comments.

Issue: Apify enrichment returning empty results

Solution: Verify the LinkedIn URL format from the commenter profile is correct. Check your Apify actor is running properly and hasn’t hit rate limits.

Issue: HubSpot contact not created

Solution: Check that your HubSpot App Token has crm.objects.contacts.write scope enabled. Verify the email field is mapping correctly.

Issue: Duplicate contacts in HubSpot

Solution: HubSpot uses email as the unique identifier. The node is configured to “Create or Update” so duplicates should be updated, not created.

Issue: Rate limit errors from Apify

Solution: The loop processes one commenter at a time, but you can add a Wait node inside the loop with 2-5 second delays if needed.

Issue: Missing email addresses for most commenters

Solution: This is normal - enrichment typically finds emails for 60-70% of profiles. Consider adding LinkedIn URL as a fallback identifier in your CRM.

Costs & Considerations

Service	Cost
ConnectSafely.ai	Free trial available, then subscription
Apify Enrichment	~$1 per 1,000 records
HubSpot	Free tier works, or existing subscription
n8n	Free (self-hosted required for community nodes)

Estimated cost per post with 50 commenters: ~$0.05 for Apify enrichment