Use PUT to insert or update list members

Hey Danny,

Looking in the debug log I’m getting the following error message:

[2018-11-19 17:53:56] ERROR: Contact Form 7 > MailChimp API Error: Bad Request. Member Exists. cane********@gm***.com is already a list member. Use PUT to insert or update list members.
Request: PUT https://us6.api.mailchimp.com/3.0/lists/cff7503cd7/members/acf894d5b701504af81932981fd44003 – {“email_address”:”cane********@gm***.com”,”interests”:{},”merge_fields”:{“FNAME”:”Perrine”},”status”:”pending”,”email_type”:”html”,”ip_signup”:”217.138.41.122″}
Response: 400 Bad Request – {“type”:”http://developer.mailchimp.com/documentation/mailchimp/guides/error-glossary/”,”title”:”Member Exists”,”status”:400,”detail”:”cane********@gm***.com is already a list member. Use PUT to insert or update list members.”,”instance”:”211e6640-5d08-4628-8022-36b267d915bb”}

How can I ‘use PUT to insert or update list members’?

Thanks in advance.