MailChimp Sync - Powered by Zapier

If you use Mailchimp to run your email marketing campaigns and want to keep your contact data in sync with BigContacts, you can easily use Zapier to do that.

With this integration, you can automatically send new or updated contacts from BigContacts to Mailchimp—and even the other way around—without exporting/importing lists manually.

What You’ll Need

• A Mailchimp account

• A BigContacts account

• A Zapier account (free or paid)

Zapier uses a simple “trigger + action” workflow. You’ll set up Zaps that push contact data from one app to the other based on changes or new entries.

Common Use Cases

You can use the Zapier integration to:

• Add a new BigContacts contact to a Mailchimp list

• Automatically update subscriber info in Mailchimp when a contact is edited in BigContacts

• Sync Mailchimp subscribers into BigContacts as new contacts

• Trigger workflows based on tags, custom fields, or opt-in status

How to Set Up the Integration

Step 1: Sign in to Zapier

Go to Zapier and log into your account.

Step 2: Create a New Zap

Click on “+ Create Zap”.

Step 3: Set the Trigger

Choose the app where the contact will originate. For example:

• App: BigContacts

• Trigger: New Contact or Contact Updated

Connect your BigContacts account when prompted.

Step 4: Set the Action

Choose what should happen in Mailchimp:

• App: Mailchimp

• Action: Add/Update Subscriber

• Select the Mailchimp list where the contact should be added

Connect your Mailchimp account and map the appropriate fields.

Step 5: Customize Field Mapping

You’ll be prompted to map fields like:

• Email address (required by Mailchimp)

• First and last name

• Tags

• Marketing permissions (optional)

Step 6: Test and Turn On

Run a quick test to confirm the data flows correctly, then turn on your Zap.

Need to Sync in the Other Direction?

Want to bring new Mailchimp subscribers into BigContacts?

Just reverse the setup:

• Trigger: Mailchimp (e.g., New Subscriber)

• Action: BigContacts (e.g., Create Contact)

You can set conditions using filters to sync only specific segments or tagged contacts.

Things to Keep in Mind

• Mailchimp requires email addresses to create a subscriber—ensure the email field is always filled in.

• Duplicates: Zapier doesn’t automatically merge duplicates. To prevent unwanted duplication, you may want to use a tag or custom field.

• Sync Direction: Zapier does not automatically support full two-way sync. You’ll need to create one Zap for each direction.

• Update Limits: Zapier’s polling interval depends on your pricing plan (every 1–15 minutes).

• Unsubscribes: If a contact unsubscribes from Mailchimp, Zapier does not automatically remove them from BigContacts.

Need Help?

If you're unsure how to set things up or want advice on best practices for syncing contact data between BigContacts and Mailchimp, email us at support@bigcontacts.com. We’re happy to help.