Invoice automation means the system raises an invoice as soon as the trigger is met, such as a job being signed off or a delivery being confirmed. The figures come from the original quote or order, so they are not retyped, and the invoice goes out promptly.
It can also schedule polite reminders as the due date passes and record payments when they arrive. People stay in charge of exceptions, such as disputes or part payments. The aim is to shorten the gap between finishing work and getting paid, and to spare the finance team repetitive typing.