Subscriptions
With subscriptions you never have to worry about forgetting to bill your customers again, especially when charging for recurring services or retainers.
There are two types of subscriptions:
Manual billing is a subscription that automatically generates and sends invoices when they are due, but they are manually paid each time.
Auto billing subscriptions bill the card automatically when they are due. Auto billing is very convenient as you won't have to wait for the customer to pay or to repeatedly follow up for payments. Similarly, the customer does not have to repeatedly send manual payments. When an invoice is using auto billing, first an invoice is created and then each repeating charge is followed with just a receipt.