Next the Interval section will be required to fill in. First provide the Subscription Type, which can be either a Recurring subscription or a One-off transaction. In the case of a Recurring subscription, it is required to provide an Interval of Daily, Monthly or Yearly. This determines how often the Subscription is being charged. Then the Subscription Start date needs to be set, which determines the initial charge date. Also an optional End date be configured. If none is provided, it will be charged until the Subscription is removed, or changed later to include an End date.