This is blackberrry business cloud services for office 365. so these are legacy bes 5 device users who were migrated from our on-premise bes 5 servers and on-prem Exchange to Office 365 Exchange Online and the BES Cloud Services (BES Server in the Cloud). So of all the 691 bes users listed in the Cloud Service BES Server console, we need to determine which of these are Truly Still Actively Used Accounts and Devices.