Delivery completion can be done by scanning the QR code stated on the invoice. Currently, 3 modes are available.· Completion modeScan the invoice QR code to update the invoice status to the delivery complete status.· Recovery modeBy updating the invoice QR code, we update the invoice status back to the reopened state.· Completion release modeBy updating the invoice by scanning the QR code, we update the invoice status to undelivered status.· Incidental modeBy scanning the invoice with the QR code, you register the actual result of the incidental work and update the status of the invoice to the delivery completion status.