Title: Mailchimp integration with API error
Last modified: September 2, 2025

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# Mailchimp integration with API error

 *  Resolved [AngeloLazzari](https://wordpress.org/support/users/angelolazzari/)
 * (@angelolazzari)
 * [9 months, 1 week ago](https://wordpress.org/support/topic/mailchimp-integration-with-api-error/)
 * Hi, we updated to the last version **v3.5.27** and when we put the API code (
   copied directly from mailchimp) we get this error: Not Connected! invalid API
   Key … no spaces before or after the key.
 * we tried to generate another one and same problem thought…
 * What can it be? thanks
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fmailchimp-integration-with-api-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Support [Joynal Abedin](https://wordpress.org/support/users/joynalabedin/)
 * (@joynalabedin)
 * [9 months, 1 week ago](https://wordpress.org/support/topic/mailchimp-integration-with-api-error/#post-18624712)
 * Hello [@angelolazzari](https://wordpress.org/support/users/angelolazzari/),
 * Thank you for reaching out to us. I have reviewed the latest version (v3.5.27)
   of
    **Ultra Addons for Contact Form 7** plugin. The Mailchimp API integration
   is working properly. Please check the [screenshot ](https://prnt.sc/EuhZ5IUnuBFj)
   for reference. And the feature is also working as expected.
 * It seems the issue you reported is site-specific. I recommend you to follow the
   documentation properly. If the issue persists, please contact the official support
   team of Ultra Addons for Contact Form 7.
 * Thank you for your understanding.

Viewing 1 replies (of 1 total)

The topic ‘Mailchimp integration with API error’ is closed to new replies.

 * ![](https://ps.w.org/ultimate-addons-for-contact-form-7/assets/icon-128x128.gif?
   rev=3549230)
 * [Ultra Addons for Contact Form 7](https://wordpress.org/plugins/ultimate-addons-for-contact-form-7/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/ultimate-addons-for-contact-form-7/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/ultimate-addons-for-contact-form-7/)
 * [Active Topics](https://wordpress.org/support/plugin/ultimate-addons-for-contact-form-7/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/ultimate-addons-for-contact-form-7/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/ultimate-addons-for-contact-form-7/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Joynal Abedin](https://wordpress.org/support/users/joynalabedin/)
 * Last activity: [9 months, 1 week ago](https://wordpress.org/support/topic/mailchimp-integration-with-api-error/#post-18624712)
 * Status: resolved