Submit the sub rental order to workflow for review by the rental manager.

Standard procedure

1.	Go to Rental order management > Rental orders > All sub rental orders.
2.	In the list, mark the selected row.
3.	In the list, click the link in the selected row.
4.	On the Action Pane, click Invoice.
5.	Click Workflow to open the drop dialog.
6.	Click Submit.
7.	In the Comment field, type a value.
8.	Click OK.