Setting Up Mailchimp
Step-by-step guide to syncing form submissions to your Mailchimp audience.
What you need
- A Mailchimp account (the free plan works)
- A Business plan on Make Page
Step 1: Get your API Key
Open your Mailchimp account settings
Log in to Mailchimp, click your profile icon in the bottom-left corner, and select Account & billing.
Navigate to API keys
Go to Extras and then API keys.
Create a key
Click Create A Key. Copy the generated key immediately — you won't be able to see it again. It looks like xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx-usXX.
The suffix after the dash (e.g. us21) is your data center. Make Page reads it automatically from the API key — you don't need to configure it separately.
Step 2: Find your Audience ID
Go to your Audience
In the Mailchimp sidebar, click Audience.
Open Audience settings
Click the three-dot menu next to your audience name and select Settings.
Find the Audience ID
Under Audience name and defaults, the Audience ID is displayed on the page (e.g. 18ac3f115a). Copy it.
Step 3: Configure in Make Page
Open site settings
Go to your dashboard and click the gear icon on your site card.
Go to Forms & Integrations
Open the Forms & Integrations tab.
Expand Mailchimp
Click on the Mailchimp card to expand its settings.
Paste your credentials
Enter your API Key and List ID (the Audience ID from Step 2).
Set the email field name
The Email Field defaults to email. If your form uses a different name attribute for the email input (e.g. subscriber_email), update it here.
Enable and save
Toggle the integration on and click Save.
Step 4: Test it
Submit a form on your published site
Open your published site and fill out a form with a real email address.
Check your Mailchimp audience
In Mailchimp, go to Audience and then Manage contacts. The new subscriber should appear within a few seconds.
How subscribers are synced
Each form submission upserts a subscriber by email address. If the email already exists in your audience, the existing contact is updated rather than creating a duplicate.
Troubleshooting
Subscriber not appearing in Mailchimp
- Verify the API key is correct and has not been revoked
- Double-check the Audience ID matches the audience you are viewing in Mailchimp
- Confirm the Email Field name matches the
nameattribute on your form's email input
"looks fake or invalid" error
- Mailchimp rejects disposable email addresses (e.g. mailinator.com, guerrillamail.com). Use a real email address when testing.
Even when Mailchimp rejects an email, the form submission is still stored in Make Page. If subscribers are missing, double-check your API key and Audience ID before assuming the form is broken.