When bulk adding members to an Azure AD administrative unit, which information is necessary to include in the upload file?

In the context of bulk adding members to an Azure AD administrative unit, it is essential to focus on the user principal name (UPN) as the primary piece of information required for the process. The UPN serves as the unique identifier for users within Azure Active Directory, allowing for accurate identification and integration of users into the administrative unit.

When using a file to upload multiple users, Azure AD processes the UPN because it directly correlates to the account in the Azure Active Directory. Having just the UPN ensures that Azure can locate and associate the users precisely with their respective accounts.

Other identifiers like the display name or object identifier are not sufficient for bulk uploads. The display name, for example, is not unique and could refer to multiple users, leading to confusion. The object identifier is indeed unique but is not required for this specific bulk addition process, as the UPN suffices for identifying users effectively. Therefore, including only the user principal name (UPN) is the correct requirement when uploading member information for Azure AD administrative units.