In the knowledge base for the Contact Form 7 Integration there is a notice at the bottom:

Please be aware that we only supply the email field to Mailchimp. If you’d like to add other fields, we provide a filter: yikes-mailchimp-contact-form-7 (click here for an article explaining how to use this filter).

https://codeparrots.com/knowledge-base/contact-form-7-integration/

The link to the article explaining how to use the filter goes to a page that does not exist. This filter no longer appears on the knowledge base filter page. Is this functionality still possible?

I am struggling to find a plugin that can both submit a contact form via email and also subscribe the user to Mailchimp using the form fields for merge tags and options such as tagging the user.

The page I need help with: [log in to see the link]