1. The document describes how to set up and manage recurring service packages for customers. Key steps include creating a service, designating it as recurring, setting the package details like price and number of appointments, assigning it to a customer, and tracking their remaining balance. 2. When booking future appointments for a customer on a package, staff can see the package and remaining balance, and apply appointments from the package. 3. Staff can also add existing bookings to a package during checkout to use appointments from the customer's package.