Liinks Help

Connecting to Mailchimp

Last updated: May 9, 2026

When you collect email subscribers through a form with Collect subscribers enabled, Liinks can automatically sync those emails to your Mailchimp account. Here's how to set it up:

  1. Sign in to your Mailchimp account and navigate to the API Keys page under Account > Extras > API Keys (or just click here).
  2. Create a new API key by clicking the "Create A Key" button.
  3. Copy the newly created API key.
  4. Back on Liinks, paste the API key in the "Mailing List Settings" section on your settings page.
  5. (Optional) If you have multiple Mailchimp contact lists, you can select the list you want contacts to be added to. By default, contacts are added to your global contact list.
  6. Test by navigating to your Liinks page and submitting an email through your form.

Once connected, every email submitted through a subscriber-mode form is automatically added to your Mailchimp contacts with a Liinks tag, so you can easily filter and segment them.

If something went wrong during the test, check the common issues section below or contact us for assistance.

Setting up a subscriber-mode form

If you haven't created a form yet, the quickest way to start collecting emails is with the Collect Emails block. Click Add Block, scroll to the Engagement section, and select Collect Emails. This creates a form with subscriber mode already enabled. See How to Collect Email Signups for more details.

Common issues

Error message: Your merge fields were invalid.

This error shows up when your Mailchimp audience has required merge fields. To fix it:

  1. Sign in to your Mailchimp account and head to Audience > Settings > Audience fields and |MERGE| tags.
  2. Uncheck any required fields (other than Email Address).
  3. Save changes.

You should no longer see the error when adding contacts.

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