Financial components are either once-off or recurring.
Once-off financial components are processed once. An example of a once-off financial component is an under payment that is processed completely on a single date.
Recurring financial components are processed repeatedly according to their delivery frequency. Each time a recurring financial component is processed, the next due date is calculated by adding the nominee's delivery frequency to the current date. The next due date continues to be 'rolled forward' until the financial component reaches its end date.
Typically, recurring financial components are processed multiple times. Note, however, that recurring financial components will only be processed once if their lifespan is shorter than or equal to the length of their delivery frequency.