This script executes the standard invoicing, by the following steps:
•Invoicing: Prepare projects for invoicing o hours.
•Invoicng: Fixed-Price-Billing Processes, prepare other processes for hours invoicing.
•Invoicing: invoice hours.
•Invoicing: Overview non-invoiced hours.
•Invoicing: Approve all concept Invoice Lines.
If your organization hs another invoicing process, you need to make your own background script. This can be placed in the screen Background Scripts.