The "Billing from" functionality allows defining the stage of the workflow from which you want Fitnet to generate invoice proposals for the relevant item (Timesheet, Expense reports, Purchases).
To do this, simply click in front of the chosen stage in the workflow configuration.
Regarding the Timesheet validation workflow, it is important to note that this functionality is only valid when the Workflow validation type is monthly and the Projects are in Time and Materials/Time and Materials with cap + Billing schedule = Monthly. Only the invoices for which each assigned collaborator's timesheet is validated will be displayed.
