We're glad to inform you that our developers have implemented a fix for the Mailchimp integration error. Therefore, if you connect your Ecwid account to Mailchimp in
Ecwid admin → Marketing → Newsletters, it should be connected successfully.
We are terribly sorry for this downtime.
If you have any questions you can reach our Support team via email at
support@ecwid.com. Premium users can contact us via Live Chat from
Ecwid Dashboard > Get Help > Open Live Chat (
Screenshot ).