Title: WP Forms integration error Last modified: April 14, 2022 --- # WP Forms integration error * Resolved [katia_d](https://wordpress.org/support/users/uroboro_comunicazione/) * (@uroboro_comunicazione) * [4 years, 1 month ago](https://wordpress.org/support/topic/wp-forms-integration-error/) * Hi, I’m using the WPforms integration but when the “Mailchimp” field checkbox I inserted in my form is checked, the user data are not added to my list: seems that there is a merge tag correspondance issue (see debug log below) but I don’t know how to fix it. I wait for your support and thank you in advance, best regards * _____________________________________________________________________ * Log di debug Filtra.. [2021-12-03 13:27:27] ERROR: WPForms > Mailchimp API Error: Bad Request. Invalid Resource. Your merge fields were invalid. – BIRTHDAY : Please enter a value Request: PATCH [https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members/34c8d8088bed86192a6d250a550adece](https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members/34c8d8088bed86192a6d250a550adece){“ status”:”pending”,”email_address”:”capr***********@gm***.com”,”interests”:{},” merge_fields”:{},”email_type”:”html”,”ip_signup”:”84.33.189.247″,”tags”:[]} Response: 400 Bad Request {“type”:”[https://mailchimp.com/developer/marketing/docs/errors/”](https://mailchimp.com/developer/marketing/docs/errors/”);,” title”:”Invalid Resource”,”status”:400,”detail”:”Your merge fields were invalid.”,” instance”:”0875f514-a386-aa4c-c527-0e22b60dc983″,”errors”:[{“field”:”BIRTHDAY”,” message”:”Please enter a value”}]} [2021-12-29 16:09:05] ERROR: WPForms > Mailchimp API Error: Bad Request. Invalid Resource. Your merge fields were invalid. – FNAME: Please enter a value – LNAME : Please enter a value – BIRTHDAY : Please enter a value Request: POST [https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members](https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members){“ status”:”pending”,”email_address”:”aida**********@gm***.com”,”interests”:{},” merge_fields”:{},”email_type”:”html”,”ip_signup”:”5.77.81.5″,”tags”:[]} Response: 400 Bad Request {“type”:”[https://mailchimp.com/developer/marketing/docs/errors/”](https://mailchimp.com/developer/marketing/docs/errors/”);,” title”:”Invalid Resource”,”status”:400,”detail”:”Your merge fields were invalid.”,” instance”:”e602db43-7755-6a4f-857c-7a686d698723″,”errors”:[{“field”:”FNAME”,” message”:”Please enter a value”},{“field”:”LNAME”,”message”:”Please enter a value”},{“ field”:”BIRTHDAY”,”message”:”Please enter a value”}]} [2022-04-12 18:51:14] ERROR: WPForms > Mailchimp API Error: Bad Request. Invalid Resource. Your merge fields were invalid. – FNAME : Please enter a value – LNAME : Please enter a value Request: POST [https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members](https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members){“ status”:”pending”,”email_address”:”mail@ur*****.net”,”interests”:{},”merge_fields”:{},” email_type”:”html”,”ip_signup”:”37.182.1.172″,”tags”:[]} Response: 400 Bad Request{“ type”:”[https://mailchimp.com/developer/marketing/docs/errors/”](https://mailchimp.com/developer/marketing/docs/errors/”);,” title”:”Invalid Resource”,”status”:400,”detail”:”Your merge fields were invalid.”,” instance”:”fa115092-104b-06d4-6a8f-a221ce0ca5b2″,”errors”:[{“field”:”FNAME”,” message”:”Please enter a value”},{“field”:”LNAME”,”message”:”Please enter a value”}]}[ 2022-04-12 18:57:34] ERROR: WPForms > Mailchimp API Error: Bad Request. Invalid Resource. Your merge fields were invalid. – FNAME : Please enter a value – LNAME: Please enter a value Request: POST [https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members](https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members){“ status”:”pending”,”email_address”:”soci**@ur*****.net”,”interests”:{},”merge_fields”:{},” email_type”:”html”,”ip_signup”:”37.182.1.172″,”tags”:[]} Response: 400 Bad Request{“ type”:”[https://mailchimp.com/developer/marketing/docs/errors/”](https://mailchimp.com/developer/marketing/docs/errors/”);,” title”:”Invalid Resource”,”status”:400,”detail”:”Your merge fields were invalid.”,” instance”:”e9615836-1d77-55b5-eae8-a1af42681611″,”errors”:[{“field”:”FNAME”,” message”:”Please enter a value”},{“field”:”LNAME”,”message”:”Please enter a value”}]}[ 2022-04-12 19:06:30] ERROR: WPForms > Mailchimp API Error: Bad Request. Invalid Resource. Your merge fields were invalid. – FNAME : Please enter a value – LNAME: Please enter a value Request: POST [https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members](https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members){“ status”:”pending”,”email_address”:”mail@ur*****.net”,”interests”:{},”merge_fields”:{},” email_type”:”html”,”ip_signup”:”37.182.1.172″,”tags”:[]} Response: 400 Bad Request{“ type”:”[https://mailchimp.com/developer/marketing/docs/errors/”](https://mailchimp.com/developer/marketing/docs/errors/”);,” title”:”Invalid Resource”,”status”:400,”detail”:”Your merge fields were invalid.”,” instance”:”3910f063-904f-06a5-10a2-6c618985fe3a”,”errors”:[{“field”:”FNAME”,” message”:”Please enter a value”},{“field”:”LNAME”,”message”:”Please enter a value”}]}[ 2022-04-12 19:11:32] ERROR: WPForms > Mailchimp API Error: Bad Request. Invalid Resource. Your merge fields were invalid. – FNAME : Please enter a value – LNAME: Please enter a value Request: POST [https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members](https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members){“ status”:”pending”,”email_address”:”seek***********@gm***.com”,”interests”:{},” merge_fields”:{},”email_type”:”html”,”ip_signup”:”37.182.1.172″,”tags”:[]} Response: 400 Bad Request {“type”:”[https://mailchimp.com/developer/marketing/docs/errors/”](https://mailchimp.com/developer/marketing/docs/errors/”);,” title”:”Invalid Resource”,”status”:400,”detail”:”Your merge fields were invalid.”,” instance”:”7b4866fa-ed48-fa64-2148-c6d39baa545c”,”errors”:[{“field”:”FNAME”,” message”:”Please enter a value”},{“field”:”LNAME”,”message”:”Please enter a value”}]}[ 2022-04-12 19:12:46] ERROR: WPForms > Mailchimp API Error: Bad Request. Invalid Resource. Your merge fields were invalid. – FNAME : Please enter a value – LNAME: Please enter a value Request: POST [https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members](https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members){“ status”:”pending”,”email_address”:”seek***********@gm***.com”,”interests”:{},” merge_fields”:{},”email_type”:”html”,”ip_signup”:”37.182.1.172″,”tags”:[]} Response: 400 Bad Request {“type”:”[https://mailchimp.com/developer/marketing/docs/errors/”](https://mailchimp.com/developer/marketing/docs/errors/”);,” title”:”Invalid Resource”,”status”:400,”detail”:”Your merge fields were invalid.”,” instance”:”19de51db-6af1-2d76-2102-780c28698add”,”errors”:[{“field”:”FNAME”,” message”:”Please enter a value”},{“field”:”LNAME”,”message”:”Please enter a value”}]}[ 2022-04-12 19:15:27] WARNING: WPForms > kado***@ya***.it is already subscribed to the selected list(s) [2022-04-12 22:50:51] ERROR: WPForms > Mailchimp API Error: Bad Request. Invalid Resource. Your merge fields were invalid. – FNAME: Please enter a value – LNAME : Please enter a value Request: POST [https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members](https://us20.api.mailchimp.com/3.0/lists/0e14c82fd3/members){“ status”:”pending”,”email_address”:”fabr***********@al***.it”,”interests”:{},” merge_fields”:{},”email_type”:”html”,”ip_signup”:”95.234.44.103″,”tags”:[]} Response: 400 Bad Request {“type”:”[https://mailchimp.com/developer/marketing/docs/errors/”](https://mailchimp.com/developer/marketing/docs/errors/”);,” title”:”Invalid Resource”,”status”:400,”detail”:”Your merge fields were invalid.”,” instance”:”30122883-b900-467f-361d-3cec43ba4dc5″,”errors”:[{“field”:”FNAME”,” message”:”Please enter a value”},{“field”:”LNAME”,”message”:”Please enter a value”}]}[ 2022-04-13 00:35:24] WARNING: WPForms > elis**********@li****.it is already subscribed to the selected list(s) [2022-04-13 11:21:55] WARNING: WPForms > virg*****@gm***. com is already subscribed to the selected list(s) [2022-04-14 20:46:27] WARNING: WPForms > kado***@ya***.it is already subscribed to the selected list(s) * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fwp-forms-integration-error%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) * [4 years, 1 month ago](https://wordpress.org/support/topic/wp-forms-integration-error/#post-15597441) * The error is about certain fields being required to have some value set. * In mailchimp.com under your audience settings you can go to the fields and merge tag settings and uncheck the box for those fields to be required. * Hope that helps. If you have any questions, please let me know! Viewing 1 replies (of 1 total) The topic ‘WP Forms integration error’ is closed to new replies. * ![](https://ps.w.org/mailchimp-for-wp/assets/icon-256x256.png?rev=1224577) * [MC4WP: Mailchimp for WordPress](https://wordpress.org/plugins/mailchimp-for-wp/) * [Frequently Asked Questions](https://wordpress.org/plugins/mailchimp-for-wp/#faq) * [Support Threads](https://wordpress.org/support/plugin/mailchimp-for-wp/) * [Active Topics](https://wordpress.org/support/plugin/mailchimp-for-wp/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/mailchimp-for-wp/unresolved/) * [Reviews](https://wordpress.org/support/plugin/mailchimp-for-wp/reviews/) ## Tags * [Merge tag](https://wordpress.org/support/topic-tag/merge-tag/) * 1 reply * 2 participants * Last reply from: [Lap](https://wordpress.org/support/users/lapzor/) * Last activity: [4 years, 1 month ago](https://wordpress.org/support/topic/wp-forms-integration-error/#post-15597441) * Status: resolved