Title: Registration Form > MailChimp API Error
Last modified: May 15, 2018

---

# Registration Form > MailChimp API Error

 *  Resolved [veroboned](https://wordpress.org/support/users/veroboned/)
 * (@veroboned)
 * [8 years ago](https://wordpress.org/support/topic/registration-form-mailchimp-api-error-2/)
 * Hi!!!
    I’ve modified the HTML of my Mailchimp widget on wordpress so I can adapt
   to the Privacy policies. After that I tried subscribing myself with different
   emails accounts and i always get an “error” response.
 * When I check the API on wordpress, this are the errors I got:
 *     ```
       [2018-05-14 17:27:38] ERROR: Form 6545 > MailChimp API error: 400 Bad Request. Invalid Resource. Your merge fields were invalid.
       - NOMBRE : Please enter a value
       Request: PUT https://us9.api.mailchimp.com/3.0/lists/4c9dd2c769/members/999d565d1bae3045d5d0de71cdd1af3e - {"email_address":"Alej************@gm***.com","interests":{},"merge_fields":{},"status":"pending","email_type":"html","ip_signup":"79.154.167.132"}
       Response: 400 Bad Request - {"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"Your merge fields were invalid.","instance":"b296f593-7c35-4524-8db5-bf9e24265609","errors":[{"field":"NOMBRE","message":"Please enter a value"}]}
       [2018-05-14 17:31:14] ERROR: Form 6545 > MailChimp API error: 400 Bad Request. Invalid Resource. Your merge fields were invalid.
       - NOMBRE : Please enter a value
       Request: PUT https://us9.api.mailchimp.com/3.0/lists/4c9dd2c769/members/999d565d1bae3045d5d0de71cdd1af3e - {"email_address":"Alej************@gm***.com","interests":{},"merge_fields":{},"status":"pending","email_type":"html","ip_signup":"79.154.167.132"}
       Response: 400 Bad Request - {"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"Your merge fields were invalid.","instance":"1e240dc8-0cbd-4cb7-8319-7f630fd9f7a4","errors":[{"field":"NOMBRE","message":"Please enter a value"}]}
       [2018-05-14 17:33:31] ERROR: Form 6545 > MailChimp API error: 400 Bad Request. Invalid Resource. Your merge fields were invalid.
       - NOMBRE : Please enter a value
       Request: PUT https://us9.api.mailchimp.com/3.0/lists/4c9dd2c769/members/e461846f78cd8ae47d270f3b16a1c839 - {"email_address":"sinm***@si*****.net","interests":{},"merge_fields":{},"status":"pending","email_type":"html","ip_signup":"79.154.167.132"}
       Response: 400 Bad Request - {"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"Your merge fields were invalid.","instance":"1c83dd12-bcc4-4348-9b82-04e5942a0686","errors":[{"field":"NOMBRE","message":"Please enter a value"}]}
       [2018-05-14 17:33:39] ERROR: Form 6545 > MailChimp API error: 400 Bad Request. Invalid Resource. Your merge fields were invalid.
       - NOMBRE : Please enter a value
       Request: PUT https://us9.api.mailchimp.com/3.0/lists/4c9dd2c769/members/e461846f78cd8ae47d270f3b16a1c839 - {"email_address":"sinm***@si*****.net","interests":{},"merge_fields":{},"status":"pending","email_type":"html","ip_signup":"79.154.167.132"}
       Response: 400 Bad Request - {"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"Your merge fields were invalid.","instance":"cb076e49-efdd-4063-9894-77ea4bed3333","errors":[{"field":"NOMBRE","message":"Please enter a value"}]}
       [2018-05-14 17:36:04] ERROR: Form 6545 > MailChimp API error: 400 Bad Request. Invalid Resource. Your merge fields were invalid.
       - NOMBRE : Please enter a value
       Request: PUT https://us9.api.mailchimp.com/3.0/lists/4c9dd2c769/members/5b0e5d8ddc89fa86bb6c578ee91797ab - {"email_address":"ahde******@gm***.com","interests":{},"merge_fields":{},"status":"pending","email_type":"html","ip_signup":"92.191.132.123"}
       Response: 400 Bad Request - {"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"Your merge fields were invalid.","instance":"a74f7d7f-bf12-4172-89d5-6d81c0b26924","errors":[{"field":"NOMBRE","message":"Please enter a value"}]}
       [2018-05-14 17:37:00] ERROR: Form 6545 > MailChimp API error: 400 Bad Request. Invalid Resource. Your merge fields were invalid.
       - NOMBRE : Please enter a value
       Request: PUT https://us9.api.mailchimp.com/3.0/lists/4c9dd2c769/members/5b0e5d8ddc89fa86bb6c578ee91797ab - {"email_address":"ahde******@gm***.com","interests":{},"merge_fields":{},"status":"pending","email_type":"html","ip_signup":"92.191.132.123"}
       Response: 400 Bad Request - {"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"Your merge fields were invalid.","instance":"67dcdd6e-20c3-472c-9887-700d019d8feb","errors":[{"field":"NOMBRE","message":"Please enter a value"}]}
       [2018-05-14 17:43:38] ERROR: Form 6545 > MailChimp API error: 400 Bad Request. Invalid Resource. Your merge fields were invalid.
       - NOMBRE : Please enter a value
       Request: PUT https://us9.api.mailchimp.com/3.0/lists/4c9dd2c769/members/e461846f78cd8ae47d270f3b16a1c839 - {"email_address":"Sinm***@si*****.net","interests":{},"merge_fields":{},"status":"pending","email_type":"html","ip_signup":"79.154.167.132"}
       Response: 400 Bad Request - {"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"Your merge fields were invalid.","instance":"1e5e98c1-e17c-44d2-ba30-abb78f9924fa","errors":[{"field":"NOMBRE","message":"Please enter a value"}]}
       [2018-05-14 17:44:10] ERROR: Form 6545 > MailChimp API error: 400 Bad Request. Invalid Resource. Your merge fields were invalid.
       - NOMBRE : Please enter a value
       Request: PUT https://us9.api.mailchimp.com/3.0/lists/4c9dd2c769/members/e461846f78cd8ae47d270f3b16a1c839 - {"email_address":"sinm***@si*****.net","interests":{},"merge_fields":{},"status":"pending","email_type":"html","ip_signup":"79.154.167.132"}
       Response: 400 Bad Request - {"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"Your merge fields were invalid.","instance":"5193ea42-fcbe-40c9-bb4d-afc23277d169","errors":[{"field":"NOMBRE","message":"Please enter a value"}]}
       [2018-05-14 17:50:39] ERROR: Form 6545 > MailChimp API error: 400 Bad Request. Invalid Resource. Your merge fields were invalid.
       - FNAME : Please enter a value
       Request: PUT https://us9.api.mailchimp.com/3.0/lists/4c9dd2c769/members/e461846f78cd8ae47d270f3b16a1c839 - {"email_address":"sinm***@si*****.net","interests":{},"merge_fields":{},"status":"pending","email_type":"html","ip_signup":"79.154.167.132"}
       Response: 400 Bad Request - {"type":"http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/","title":"Invalid Resource","status":400,"detail":"Your merge fields were invalid.","instance":"649e184d-a1ce-4c0f-8c77-1894c9080470","errors":[{"field":"FNAME","message":"Please enter a value"}]} 
       ```
   
 * Please help! I am hopeless with this things… I went through different tutorials,
   guides, forums and cannot find the answer to this!
 * thanks!
    -  This topic was modified 8 years ago by [Jan Dembowski](https://wordpress.org/support/users/jdembowski/).
      Reason: Fixed formatting
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fregistration-form-mailchimp-api-error-2%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [Lap](https://wordpress.org/support/users/lapzor/)
 * (@lapzor)
 * [8 years ago](https://wordpress.org/support/topic/registration-form-mailchimp-api-error-2/#post-10282749)
 * The error reads that the field NOMBE and FNAME are set as required fields in 
   MailChimp, but not included / send in with the Registration form integration.
 * I suggest to not mark those fields as required under your Mailchimp.com list 
   settings.
 * Hope that helps. If you have any questions, please let us know!

Viewing 1 replies (of 1 total)

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## Tags

 * [registration form](https://wordpress.org/support/topic-tag/registration-form/)

 * 1 reply
 * 2 participants
 * Last reply from: [Lap](https://wordpress.org/support/users/lapzor/)
 * Last activity: [8 years ago](https://wordpress.org/support/topic/registration-form-mailchimp-api-error-2/#post-10282749)
 * Status: resolved