This option sets the default checkout due date type on the checkout screen.
To set the default checkout due type:
Click on the gear icon and select Settings.
Select Default CheckOut Due Type. The options are Default, Due On, and None.
Click on Save.
If the Default Check Out Due Date Type is set as Due On on the settings screen, then by default the due date will be on the "Due On" option in the Check Out transaction screen. You can still select Default or None.