Limited Use Subscriptions and Packages both give credits (for either appointments or classes). Both allow customers to book classes in advance, but they differ in when these credits are deducted.

With Packages, if a customer books a class that begins a month from now, the credit is deducted immediately. This means that a customer who books a class starting next month will lose that credit today.

With Limited Use Subscriptions, it works a little differently. These subscriptions give credits each renewal period (ie. 5 credits a month). A customer who books a class that begins during the next renewal period will lose a credit from next month's renewal period, not the current one.

If the customer books a class that starts within the current renewal period, their remaining credits from the current period will be deducted.

A customer has a monthly membership starting on August 1st that will renew on September 1st. In August, the customer books classes for September 15th. The usage will be deducted from the September 1 to October 1 period, not the current one.