Timesheet approval in NeetoInvoice adds a review step between logging hours and billing them. Approval requests are generated with the weekly timesheet report that each user receives by email on Saturday morning. The user checks their hours and clicks Verify and submit timesheet for approval, and the managers of the projects they worked on are notified by email.
Project managers can then approve timesheets for work on their projects before those hours are billed. If someone adds a time entry after the request is generated, they resubmit that week from the Weekly timesheet reports page so managers see the updated entries. This suits agencies and consulting teams that want a manager to sign off on hours.