Client can set Auto Renew on new Subscription? decides whether the plan page shows an Auto renew step with Off / On buttons. If it is No, the step is hidden and the customer cannot choose. Auto Renew Default decides which button is pre-selected when the step is shown: Auto pre-selects On, Manual pre-selects Off. The customer's final choice is saved on the subscription; a manual (non-auto-renew) plan simply ends after its last delivery unless renewed.