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Connecting Builder forms to Mailchimp with Zapier

In this guide, we will go over how to create a zap and connect a Builder form to Mailchimp with Zapier. This will allow you to do things like: collect subscribers information from a Builder form, divide your mailing list, and send emails to targeted audiences through Mailchimp. Not using MailChimp? Check out our guide on connecting a Builder form to Airtable with Zapier.

Creating a zap

Once you've logged into your Zapier account, select the "create a zap" button in the top left corner.

The first step is setting your trigger. A trigger is the event that starts a Zap (Zapier will monitor for this event). The trigger we will be using is "Webhooks by Zapier". Webhooks are automated messages sent between apps (includes information about new items, e.g. email addresses from sign-up forms).

Set the event to "Catch Hook". The Catch Hook event will wait for a new POST, PUT, or GET to a Zapier URL.

Connecting your Builder form to Zapier

Now, Zapier will provide you with a custom webhook URL. Copy this URL and navigate to your Builder form. Select the form layer and navigate to the options tab. Change "send form submission" from "email" to "custom". Paste your custom webhook URL in the "Action" input.

Next, you can test your trigger. Preview your Builder form page, fill out the form, and submit. Now, click the "test your trigger" button in Zapier. This will show if your test form submission request was found.

Connecting to Mailchimp

In step two, choose Mailchimp as your event for your form submissions to be sent to. Select "add/update subscriber" so when a user submits the form, their information will be added to your Mailchimp audience.

Next, connect the Mailchimp account you want the form submissions to go to and select the correct audience and email value (this can be the email value from the test submission step earlier in the Zap). These are the required steps, but you can also add groups, tags, and other specifications.

Lastly, test and send data to Mailchimp by selecting "test and review". This will ensure the form data is properly being sent from your Builder form to your Mailchimp audience.

Once your test data is successfully sent, you can turn on your Zap and your form will be functional.

👉Tip: If you run into any issues, Zapier has an "errors" section located in the right side bar. This can help you troubleshoot any errors that may occur.

Up Next

Connecting forms with Airtable
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