1. Entra ID is the identity provider for MSFT clouds
    1. “Azure”
    2. M365
    3. Dynamics 365
  2. Entra ID is not AD in the cloud.
    1. Has flat structure/ No OUs
    2. Has administrative units
  3. We can create additional tenants
  4. By default it will <>.onmicrosoft.com
    1. Can create/add custom domains
  5. When assigning license to groups only license applied to first level works not to members of nested groups

“Entra connect” to sync between on-prem AD and “Entra ID”
Active directory is always the source of truth.
Even if HR system is connected to Azure. Entra ID talks to on-prem to create object, which then replicates to Entra ID.


references:

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