On the 'Invoice details' page, if you have the 'Maintain' or 'Admin' user role, you can create a case for an invoice. You can do so, for example, to start a discussion on a rental invoice.

The default case description consists of:

• Invoice number
• Case type

Standard procedure

1.	Sign in to the Rental Customer Portal.
2.	Click 'My invoices'.
3.	Click the 'Invoice number' of the desired invoice.
4.	Click 'Create invoice case'.
5.	If desired, change the default description.
6.	In the 'Notes' field, enter detailed information.
7.	Click 'Submit'.