Chargebee Retention allows you to configure your "Holdout" page in the Experience Manager on the Pages tab.
The Holdout page is a no offer Experience that will serve as your default Cancel Experience and it cannot be archived or removed. We restrict this Holdout so that you cannot place an offer within it as we want the Holdout page to serve as a true "no offer" comparison to your test pages.
This page should always have a small % of traffic routed to it so that any external changes in performance can be isolated out from your Test Experiences. Typically we tell customers to send between 1-5% of traffic to this page. The key with the holdout page is changing it as little as possible so that it provides a consistent baseline over time.