Use Azure Active Directory (Azure AD) User Discovery to search your Azure AD subscription for users with a modern cloud identity. Azure AD user discovery can find the following attributes:
* objectId
* displayName
* mail
* mailNickname
* onPremisesSecurityIdentifier
* userPrincipalName
* AAD tenantID
* onPremisesDomainName
* onPremisesSamAccountName
* onPremisesDistinguishedName
This method supports full and delta synchronization of user attributes from Azure AD. This information can then be used along-side discovery data you collect from the other discovery methods.
Actions for Azure AD user discovery are recorded in the SMS_AZUREAD_DISCOVERY_AGENT.log
file on the top-tier site server of the hierarchy.