I’m trying to update one of my subscriber’s status using mailchimp API 3.0, Meteor and javascript. Here is my js code I’m using: with and But I always have the same output: I20181204-18:42:12.714(8)? title: ‘Member Exists’, I20181204-18:42:12.714(8)? status: 400, I20181204-18:42:12.714(8)? detail: ‘(user mail adress) is already a list member. Use PUT to insert or update list members.’ But I am