When you cancel a subscription in the Backoffice you can select to cancel it on a custom date. Select the date required, then press Preview Changes to see how it will affect the subscription.

If you select a date in the next invoice period, Stora will calculate the pro-rata amount due to be charged and charge this amount on the customer's usual billing day.

For example, if a customer is billed from 14 November to 14 December but wishes to cancel on 20 December, Stora will calculate the pro-rata amount from the 14th to the 20th and charge this.

If you select a date within the current invoice period, i.e., the invoice that has already been paid, the subscription will be cancelled on that date. If you wish to refund unused time, you can use the refund method detailed here.