If you ever had the challenge to switch the licensing of a Autodesk product that does no longer start, then you know exactly why this tool saves a lot of time. As a CAD-Admin you might have to do this multiple times per week.
For Autodesk 2020 product this means, you have to use AdskLicensingInstHelper.exe and some parameters. This takes time and knowledge.
Adsk License Modifier is a GUI for this exe and makes this task easy.