Trying to enable MFA for all Global Admin accounts in Azure AD.
When navigating in Azure portal to
AzureAD->Users->All Users->Multi-Factor Authentication->Global Administrators,
What I see is a list of all Global Admins, but the checkboxes are all greyed out and clicking a greyed out user shows side pane without enable button. Only one that is not greyed out is the subscription user whose email ends with *.onmicrosoft.com The others are external invited users.
I think we are using free AzureAD version. (non premium)
https://docs.microsoft.com/en-us/azure/active-directory/authentication/concept-mfa-licensing
This docs page says it should be possible to enable it.
Am I missing something or is this intended?
