Thread: How to create custom error/thanks page for mailchimp signup form?

cannot find proper thread, sorry for the off-topic post.
is anyone knows how to create custom error/thanks page for mailchimp signup form? specific mailchimp forums have no help @ all
thanks

It isn't possible to create list forms (ex. Signup Form, Signup "Thank You"
Page, Confirmation "Thank You" Page, Update Profile Form, etc.) according to this thread