If you are running LinkedIn Lead Gen Forms, the submissions land in LinkedIn Campaign Manager and then they wait. There is no native LinkedIn Mailchimp integration to add those leads to your audience automatically, so most teams export a CSV every week or so and the welcome email goes out long after interest has faded.
This guide shows you how to connect LinkedIn Lead Gen Forms to Mailchimp so every submission is added to your audience in real time, with full field mapping and the option to tag and trigger a journey.
Key point: If your Mailchimp audience uses double opt-in, new LinkedIn contacts will sit as pending until they confirm. Decide how you want that handled before you go live.
Why You Need a LinkedIn Mailchimp Integration
LinkedIn Lead Gen Forms convert well because they are pre-filled and reach professionals in a business mindset. Without a LinkedIn email marketing integration, the advantage leaks away:
- Speed to lead matters. A welcome email that arrives in minutes beats one sent next week.
- No CSV uploads. Exporting from LinkedIn and importing into Mailchimp is slow and easy to forget.
- Journeys start on a tag. A tag applied during the sync becomes the trigger for your welcome series.
- Clean segmentation. Tagging LinkedIn leads at the source keeps them separate from other sign-up sources.
What You Will Need
- A LeadSync account
- A LinkedIn account with Lead Gen Form access in Campaign Manager
- An active LinkedIn Lead Gen Form campaign
- A Mailchimp account with an audience set up
How to Set Up Your LinkedIn Mailchimp Integration
The whole setup takes about five minutes.
Step 1: Connect Your LinkedIn Account
- Log in to your LeadSync account
- Go to Ad Accounts > LinkedIn from the left menu
- Click Add LinkedIn Account
- Sign in to LinkedIn and authorize LeadSync to access your lead data
- Your account appears in the table once connected
LeadSync uses OAuth, so we never see your LinkedIn password. We request only the permissions needed to read Lead Gen Form submissions.
Step 2: Connect Your Mailchimp Account
- Go to Connections from the left menu
- Click Add Connection
- Select Mailchimp from the dropdown
- Authorize LeadSync in the Mailchimp window
- Name your connection (for example, “LinkedIn Leads to Mailchimp”)
- Click Update Connection
Step 3: Connect Your Lead Gen Form With Field Mapping
- Go to Lead Forms from the left menu
- Click Add LinkedIn Lead Form
- Select your Ad Account
- Select your Lead Gen Form
- Select your Mailchimp Connection and the target audience
- Add a tag if you want to trigger a journey or segment these leads
- Map your fields (see the guide below)
- Click Update Notification
Step 4: Test Your Integration
Submit a test lead through your LinkedIn campaign. Within a minute or two the contact should appear in your Mailchimp audience with the merge fields populated and your tag applied. If double opt-in is on, the contact will show as pending until confirmed.
LinkedIn to Mailchimp Field Mapping Guide
Mailchimp stores contact data in merge fields. Here is how common LinkedIn fields map across:
| LinkedIn Field | Mailchimp Merge Field | Notes |
|---|---|---|
| Email Address | Required. Mailchimp uses email as the unique identifier. | |
| First Name | FNAME | Pre-filled from the LinkedIn profile. |
| Last Name | LNAME | Pre-filled from the LinkedIn profile. |
| Phone Number | PHONE | Add a phone merge field if your audience does not have one. |
| Company Name | Custom merge field | Create a "Company" merge field first, then map it. |
| Job Title | Custom merge field | Create a "Job Title" merge field first, then map it. |
| Custom Questions | Custom merge fields | Create matching merge fields in Mailchimp before mapping. |
Important: Email is required, and any custom merge field must exist in Mailchimp before you map to it, or the data has nowhere to land.
What Happens After Leads Sync to Mailchimp
Once the Mailchimp LinkedIn integration is live, you can automate the follow-up:
- Start a customer journey triggered by the tag applied during the sync.
- Send a welcome series so every LinkedIn lead hears from you the same day.
- Segment by merge field, for example by company or job title.
- Sync to other tools that already listen to your Mailchimp audience.
Troubleshooting Common Issues
Can’t See Your LinkedIn Ad Account?
Make sure your LinkedIn account has admin access to the ad account and Lead Gen Form access in Campaign Manager.
Leads Stuck as Pending?
This is double opt-in. The contact has been added but must confirm before they are subscribed. Turn double opt-in off for the audience if you want them added as subscribed immediately, and confirm you have a lawful basis to email them.
Leads Not Appearing in Mailchimp?
- Email not mapped: Mailchimp needs email to add a contact. Confirm the mapping.
- Merge field missing: If you mapped to a merge field that does not exist, create it first.
- Connection expired: Re-authorize the Mailchimp connection if syncing stops.
Lead Gen Form Not Showing in LeadSync?
Your form must belong to an active or paused campaign to appear. Draft forms that have never run will not show up.
Frequently Asked Questions
Does LinkedIn have a native Mailchimp integration?
No. A third-party tool like LeadSync creates the connection and adds the contact automatically.
How fast do LinkedIn leads reach Mailchimp?
Most appear within 60 seconds of submission.
Why are my contacts pending?
Your audience uses double opt-in, so contacts must confirm before they are subscribed.
Can I trigger a customer journey?
Yes. Apply a tag during the sync and use it as the journey’s starting point.
Is my data secure?
Yes. LeadSync uses OAuth for LinkedIn and a secure connection to Mailchimp, and encrypts data in transit and at rest.
Start Your LinkedIn Mailchimp Integration Today
Stop importing CSVs a week after the lead came in. With LeadSync, every LinkedIn Lead Gen Form submission lands in your Mailchimp audience in real time.
Running Mailchimp on other ad platforms too? Here is how to send Google Ads and TikTok leads to Mailchimp.
New to LinkedIn ads? Start with our LinkedIn Lead Gen Ads guide and our B2B lead generation playbook, or contact support if you need a hand.
