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

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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
{“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/”,”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
{“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/”,”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
{“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/”,”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
{“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/”,”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
{“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/”,”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
{“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/”,”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
{“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/”,”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
{“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/”,”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)

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