The Bentley licensing system comes with many additional features that you should familiarize yourself with before you allow users to use the software. These features are available in the Entitlement Management section of your Subscription Services Portal. https://connect.bentley.com/enterprise
The critical feature that you should consider setting up is the Licensing Alert System, which allows you to restrict the usage of the software to the number of licenses you own, or a fixed number above that number.
IMPORTANT: The Bentley licensing system allows you to rent additional licenses for a fixed term without going through a purchase process – this is called “Term License”. Term Licensing is a handy feature but can also produce unexpected rentals if you have not set up your License Alerts.
See https://communities.bentley.com/products/licensing/w/licensing__wiki/42192/how-to-enable-and-configure-license-alerting-for-products for more information on Licence Alerts.