Impact: any users trying to authenticate CloudMonix against an Active Directory that was never authenticated against CloudMonix before will encounter the following error
AADSTS90002: Requested tenant identifier '00000000-0000-0000-0000-000000000000' is not valid. Tenant identifiers may not be an empty GUID.
This is a recent issue that is caused by changes made by Microsoft very recently. Microsoft has been made aware thru multiple channels.
CloudMonix team is working on an alternative sign-up process, in the meantime
A workaround has been found and instructions for authorization have been deployed into the Setup Wizard screen during authorization