In order for you to be able to set a reference date for a lease, the lease must be terminated. For more information on how to terminate a lease, see section 8.6.11.
To set a reference date for a lease:
Open a lease. For more information on how to do so, see section 4.6. or 6.1.
Go to the lease card (see image below).
Click the tab called "Dates" (see image below). Within the tab called "Dates" you will, among other things, find the heading "Reference". Note that you might have to scroll the lease card to find the heading "Reference".
Set a reference date for the lease you are working with by clicking the field "Reference date" and selecting a reference date in the calendar that opens (see image below).
Set a case number for the reference you added for the lease you are working with by entering a case number in the field "Reference case number" (see image below). Note that you only need to do this if the reference is to have a case number. If the reference should not have a case number you can skip this step.