Utilization functionality is controlled using these fields in the Utilization custom settings.
These options in the Utilization Configuration Group also control Utilization functionality.
You can use the classic Utilization calculation if your organization desires a transition period before using the latest calculation method. We recommend using the latest Utilization functionality, as soon as possible.
If your organization chooses not to use the latest Utilization functionality, you can add the Update Utilization (old) buttons to the Region, Practice, Group and Resource page layouts. Change these configuration options to use the older utilization calculation: