Add Subscribers to Mailchimp
Connect Formcierge to Mailchimp to automatically add form submitters to an audience. Ideal for lead capture forms, newsletter sign-ups, and webinar registrations.
In your Mailchimp account, go to Account → Extras → API Keys. Create a new key and copy it. Note your Audience ID (found under Audience → Settings → Audience name and campaign defaults).
In the form builder, open Workflows and add a new workflow. Add a Mailchimp — Add Subscriber step. Enter your API key and Audience ID.
Map your form's Email field to the Mailchimp Email Address field. Optionally map First Name and Last Name for personalisation.
Toggle Double Opt-in on to send Mailchimp's confirmation email before adding the contact. This is required by GDPR in most EU countries and reduces spam complaints.
Toggle Update if exists to update subscriber data if the email is already in your audience. Without this, duplicate email submissions silently succeed without creating duplicates.
You can also add subscribers via the PHP hook if you need more control — use the Mailchimp API directly in a formcierge_after_submission action. The workflow step is simpler; the hook gives you full access to Mailchimp's API for tags, groups, and merge fields.