This window contains all the information regarding the selected invoice. It is accessible from the ''Invoicing management'' window or from a ''Client'' window.
Invoicing management: ''Invoice history'' tab. In the list of invoices, click on the icon (Open file) in the column ''Invoice no.''.
Client's file: ''Billing'' tab, sub-tab ''Invoices''. In the list of invoices, click on the icon (Open file) in the column ''Invoice no.''.