Faizatech Support
← All products

Getting Started

Using FormRelay

Destinations

FormRelay

Mailchimp

See the installation steps to learn how to install our app and change the form name

Before you start

Keep the -usXX suffix. Mailchimp keys end in a datacenter tag, like a1b2c3…-us14. FormRelay derives the API host from it, so a key pasted without the suffix fails with Invalid Mailchimp API key format.

Step 1: Set Up Mailchimp Integration

  1. In your App Dashboard, go to the Sites menu and click on your Authorized Webflow Site.

Selecting Site in App Dashboard

  • Here you will see all your forms across the site.
  • A form can send to several destinations, but only one of each kind. Adding a second Mailchimp destination to the same form is not possible; edit the existing one instead.

Selecting Mailchimp Form in App Dashboard

  1. From the left-hand menu, click on Integrations. You will see available categories such as:
    • Apps & Platforms (Notion, Slack, Discord, Airtable)
    • Email & marketing (HubSpot, Mailchimp, Klaviyo, Brevo, MailerLite, EmailOctopus, Moosend, Omnisend, Sender)
    • Automation & Webhooks (Webhook, Zapier, Make, etc.)

On Integration menu selecting mailchimp

  1. Under Email & marketing, click on Mailchimp.
    • Give the connection a recognizable name (e.g., “Mailchimp integration - Contact”).
    • Paste your Mailchimp API key (For details, see section 4: How to create a Mailchimp API key).
    • click "Save".
    • After clicking "Save", your added Mailchimp integration will appear under "CONNECTIONS".
    • You can edit or delete the connection at any time.

Integration Mailchimp popup window

  1. How to create a Mailchimp API key
    • In your Mailchimp Dashboard, go to "Account & billing".
    • From the top menu, under Extras, click API keys.
    • Click "Create a Key".
    • A new page will appear:
      • Enter a recognizable API Key Name (e.g., “FormRelay by Faizatech” ).
      • Click Generate Key.
    • Your new API key will be displayed.
    • Copy the key and store it securely — you’ll need it to connect your app.

Generating an API key in Mailchimp

  1. Go back to the Forms menu.
    • Choose a Form from your authorized Webflow site.
    • Click "+ Add destination".
    • A popup will open with a dropdown for Integration → Pick an integration.
    • Select your Mailchimp integration from the dropdown.
    • Configure Field Mapping by matching each field from your Webflow form to a property in your Mailchimp Audience.
    • Click Save when finished.

Integration Mailchimp mapping window

  1. Test the integration:
    • Go to your published Webflow site.
    • Fill out and submit the form.
    • You will see the data appear in your Mailchimp Audience within a few seconds.

Showing data transfer from webflow published site to Mailchimp Audience

✅ Your Mailchimp integration is now successfully set up and ready to sync form submissions.

Troubleshooting

What you see What it means
Invalid Mailchimp API key format The -usXX datacenter suffix is missing from the key. Re-copy the whole key.

Still stuck?

Open the site's Logs page in FormRelay. Every attempt is recorded with the destination's own error message, and you can Replay a failed delivery once the cause is fixed. Delivery & Retries explains what the statuses mean.