How to Connect OptinMonster with MailChimp

OptinMonster offers seamless integration with MailChimp email marketing service. Connecting OptinMonster to your MailChimp email list is very easy.

In this article, you’ll learn how to connect MailChimp with OptinMonster.

Before You Start

Here are some things to know before you begin:

  •  As a best practice, we recommend you also connect your campaigns to Monster Leads as a backup.

Connect MailChimp

When you create a campaign in OptinMonster that you intend to collect leads with you’ll want to integrate with one or more services to send those leads to.

To send leads to MailChimp, follow these steps:

  1. Navigate to the Integrations tab in the campaign builder.
  2. Click Add New Integration.
    Monster Leads Add New Integration
  3. Search for and select MailChimp from the dropdown field.
    MailChimp Integration
  4. Log into your MailChimp account to obtain your API Key. To do this:
    1. In your MailChimp account navigate to the Account page from the dropdown menu next to your avatar and name.
      Go to MailChimp Account
    2. On the Account page, select the API Keys link from the Extras dropdown menu.
      Go to API Keys
    3. Copy the specific API Key you want to use. You can create a new key if none are listed or if you want to use a new one.
      Copy API Keys
  5. Returning to the OptinMonster campaign builder, paste your API Key into the corresponding field.
    Don’t forget to add a unique label for easy identification (internal use only).
    Connect to MailChimp
  6. Next, select the Connect to MailChimp button.
  7. Once connected, select the email list you want to add new subscribers to.
    MailChimp Email Lists
  8. (Optional) Now you can configure additional lead options like Double Opt-in and MailChimp Tags.
    MailChimp Lead Options
  9. When you’re finished, click Save.

Troubleshooting

How do I configure single or double opt-in?

You can enable or disable double opt-in under the Lead Options section for the integration (step 8 above).

For more information see our guide on single vs. double opt-in for MailChimp.

How do I send welcome emails to new leads?

MailChimp allows you to send a final welcome email to new leads. In order to send final welcome emails:

For marketing purposes, most users should use the MailChimp automation to send a series of emails to new subscribers.

 Can I add MailChimp groups?

Yes! See our guide for adding leads to your MailChimp groups.

Is it possible for me to add a phone field to my campaign?

Yes! See our guide on how to capture phone numbers with OptinMonster

Why am I receiving a “failed to connect” error when trying to connect MailChimp with OptinMonster?

This can happen if the API Key you’re using has maxed out the number of allowed simultaneous connections.

We recommend creating a new API Key to connect to OptinMonster to resolve this issue. If you’re unable to generate a new API Key for some reason, re-trying every 5 minutes until the connection is accepted should also resolve the issue.

Can I receive the IP address of my lead directly into MailChimp?

With our native integration we do send over the IP Address of your lead. It should go to MailChimp fields:

  • ip_signup AND / OR
  • ip_opt
Why is the phone number not getting saved in the MailChimp list?

Please log into your MailChimp account and navigate to Lists > Select your List > Settings > List fields and *|MERGE|* tags – from this screen you can edit your input fields.

Make sure your phone field has the value of PHONE. After you make that update, you should be good to go.

Phone Field Merge Tag Value