On-prem AD version is Windows server 2019 or above
For Azure AD, Azure Active Directory Premium P1 or P2 subscription.
At user level, the on-prem AD in sync with Azure AD that is Enterprise + security e5 license is enabled. Only Windows 10 or Windows 11 platforms are supported.
ICS 9.x/22.x HL GW with user licenses and ISAC 22.2R1