The Paid Memberships Pro Mailchimp Integration Add On allows your members to be subscribed to a Mailchimp list of your choice when they sign up for a membership. This guide will help you troubleshoot members that aren’t successfully subscribed to your chosen Mailchimp list.

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1. Check Required Fields in Mailchimp

You may have edited form fields previously that could have been used on your website elsewhere, setting them to required or using a different field name. A member won’t be subscribed to a list unless all required fields have been filled out and their field names match both by name and case.

Mailchimp has provided comprehensive video tutorials on how to edit their sign up forms over at https://mailchimp.com/help/manage-audience-signup-form-fields/

When editing a form, ensure that no fields have been set to ‘required’, as any field that gets set to the API that is empty will result in an error, resulting in your member not being subscribed to your list. 


2. Do Your Merge Tags Match?

This ties back to the above documentation that is provided by Mailchimp on editing a form. If you’ve added any additional merge tags using a code recipe, you’ll need to ensure that your merge tag in the recipe matches the field name exactly as displayed in Mailchimp. 

Mailchimp field names are typically referenced in uppercase alpha characters.


3. Enable Debugging

The Mailchimp Integration Add On will log any API errors provided that the WP_DEBUG constant has been set to true. A comprehensive guide is available on How to enable debugging on your WordPress site.

Once debugging has been enabled, run a test to subscribe a member to your list, either by proceeding through the checkout process, or hitting the ‘Save Profile’ button when editing a member’s profile through the WordPress Dashboard. 

The majority of Mailchimp errors are returned in plain English, ensuring that you can work on a fix around this quite easily. 


Still not working?

If you have tried the troubleshooting guide above and are still having problems getting your members to sync to your mailing list, please reach out to our technical support team for help.

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