New WordPress Plugin: WooCommerce MailChimp

The WooCommerce logo and MailChimp logo are trademarks of WooThemes and MailChimp respectively.

The WooCommerce logo and MailChimp logo are trademarks of WooThemes and MailChimp respectively.

After a frustrating and fruitless search for a simple and free solution to basic WooCommerce integration with MailChimp, I decided to sit down and write a little plugin to do just that. There are a couple of paid solutions, but, in my opinion, most are overpriced for providing such vanilla functionality. Also, it seems this functionality was previously bundled with WooCommerce and WooThemes has since removed it and made it a paid “extension.”

So, without further ado, here is my new WooCommerce MailChimp plugin for WordPress:

WooCommerce MailChimp provides simple MailChimp integration for WooCommerce.

Easily add customers to a designated MailChimp list and, optionally, MailChimp interest groups upon order creation or order completion.

Double opt-in option for anti-spam compliance.

The plugin is now on the WordPress Plugin Repository and you can get it by clicking on the following link:

Download WooCommerce MailChimp

Get the Source on GitHub

Join our Trello Board to see what’s on our roadmap and vote on features. As always, please provide your feedback and/or enhancement requests here.


WooCommerce Event Selection

  • Subscribe customers to MailChimp after order creation
  • Subscribe customers to MailChimp after order completion

Works with MailChimp Interest Groups

  • Set one or more interest groups to add users to based on the selected MailChimp list.


  • All features should work for each blog in multisite installations but this has not yet been tested.


Feedback is welcome!

If you need help, have problems, want to leave feedback or want to provide constructive criticism, please do so here at the WooCommerce MailChimp plugin page.


Follow @anderly on Twitter for updates on this and other plugins.


  • English (default)
  • No other translations yet.

Thanks in advance for your help on any translation efforts!


  1. Upload or extract the woocommerce-mailchimp folder to your site’s /wp-content/plugins/ directory. You can also use the Add new option found in the Plugins menu in WordPress.
  2. Enable the plugin from the Plugins menu in WordPress.


  1. Go to WooCommerce > Settings > Integration > MailChimp
  2. First, enable the plugin and set your MailChimp API Key and hit save.
  3. Select whether you want customers subscribed to your MailChimp list after order creation or order completion (there’s a difference in WooCommerce).
  4. Next, select your MailChimp list and set any interest group settings (optional) and hit save.
  5. That’s it, now customers who purchase products from your WooCommerce store will automatically be subscribed to the selected list (and optional interest groups) in MailChimp!


  1. WooCommerce MailChimp options screen.
  • Ivette

    Hi Adam,
    I am really interested in using the plugin. Can customers be automatically be added to a list, without giving them option to optin at check out etc….

    • Adam Anderly

      Yes, this is possible. You can have them automatically subscribed to a list or give them a checkbox that allows them to opt-in. You can also control whether it’s checked by default or not.

      • Ivette

        Thanks so much for the quick reply. Have you released the paid version of this plugin?

        • Adam Anderly

          Not yet, planning on Q4.

  • Bob

    I keep on getting the following error sent to me from my wordpress installation: “WooCommerce MailChimp subscription failed: MMERGE3 must be provided – Please enter a value (250)”. Your plugin doesn’t seem to have a mapping feature to map WP/WooCommerce values to MailChimp. Is that the issue? Thanks, Bob

    • Adam Anderly


      That error indicates you have a merge field named MMERGE3 defined in MailChimp that is required. The plugin currently only supports the MailChimp default merge fields of EMAIL, FNAME and LNAME. The upcoming 2.0 version will include a mapping interface.

      Until then, you could either make the merge field optional in MailChimp or rename it to one of the defaults I listed above if it isn’t already defined.

      Hope that helps and stay tuned for version 2.0 coming in October.

  • Henry Keskinen

    Hello :)
    Thanks for this plugin. This is something that really helps me. But, I cant get this working. API key is ok ‘cos I can choose the list but it just wont work somehow. Can you help me, is there anything to try? I’m using multisite, WP 4.3.1 and WC 2.4.6.

  • Tina Academia

    Hi Adam,

    We really love your plugin integrated in our website. WooCommerce MailChimp Version 1.3.1 is installed into our WordPress 4.2.5.
    Lately we are getting errors where in customers are subscribed into a wrong mail list after order has been created which happened twice already. I’ve noticed that there is a warning – ‘This plugin has not been tested with your current version of WordPress’.
    Can you please help us resolve this problem? We really wanted to continue using the plugin however we got 2 customer complaints because of this.
    Thanks heaps in advance!

  • Alex Nitsa


    How to check if the user is registered or not? Thank you

  • David Storer

    Hi Adam, I am loving this plugin and it is exactly what I have been looking for to customise my post sale communications.

    I have been using the following video as a tutorial but something is not working for me, I was hoping you could help out.

    I have installed the plugin and integrated it using the API key but when I go to ‘products’ the mailchimp integration on the right hand side is not there. (3:22)

    Have you come across this at all?

    If so, how can I fix the problem please.

    Thank you


  • Darko Martić


    Im having trouble with translation.

    I translated POT file (Croatian) and uploaded PO and MO files to wp-content/plugins/woocommerce-mailchimp/languages but with no luck.

    I tried renaming those files in various ways, and nothing…


    …thise are the files name combinations I tried…

    • Darko Martić


      but still no translations…

  • Alex Fearnside

    Hi Adam, great work on MailChimp plug in, thank you.

    I’m looking forward to Version 2.0.


  • Gareth Martin

    Thanks for the plugin Adam!