If a subscription is managed by card-on-file payment service (i.e. Stripe, Braintree, Authorize.net CIM), and you are on the Pro Plan or higher, then you can adjust the next rebill date on a subscription.
First, pull up the Member Details for the member by finding them in Manage Members and clicking on their email address. Then go to the Subscriptions tab and click the edit icon for the appropriate subscription. A pop up window will be displayed where you can select the next billing date for the subscription payment.
Once you have updated this billing date, click Save and the new billing date will be reflected in the subscriptions grid.
The only thing that will be altered here is the rebill date. Payments made will not be refunded in the case of moving the rebill date earlier, nor will a prorated amount be charged in the case of moving the rebill date later.
NOTE: If the edit icon is greyed out, that either means that the subscription was purchased using a non-card-on-file payment service (such as PayPal), or you are not on on the Pro Plan or higher.