We are excited to announce that we have launched our new Hive Community! HiveNation will remain as an archive, but all new posts, discussions, and articles will be created on Hive Community. You can visit our new community at thehivecommunity.aerohive.com
No report needed. Assuming you have HM6, navigate to Home->Administration->License Management. The actual HiveOS devices do not monitor or enforce any entitlement or licenses, that's all done within the management platform (HM6 or HM-NG). Just compare the number of entitled devices to the number of devices actually under management; as long as the former is greater than the latter you are good. This can be exported to an Excel spreadsheet.
If you want a list of the devices under management, navigate within HM6 to the Monitor tab. Select all devices, hit the Device Inventory button, and you can export that list to Excel as well.