It depends on Client Config > Order: Subscription > Client Renew Subscription Settings. With Renew on current renewal date for the last week available (default), the admin Skip/Unskip/Cancel Day modals show Update next renew day to: pre-filled with the current renewal date – change it if you want to push the charge out (it cannot be set to a past date). With Renew on last day of deliveries, the field is hidden and the renewal date is automatically moved to the customer's last scheduled delivery date, so adding a replacement day also delays the next charge. When a customer skips from their profile, the separate Client skip Settings applies: Manually adjust Renewal Settings leaves the renewal alone, Renew on current renewal date for the last week available shifts the renewal anchor to the new last date, and Renew on last day of deliveries additionally moves the renewal weekday to that date.