What Are Managed Apple IDs in Apple Business Manager?
Like any Apple ID, Managed Apple IDs are used to sign in to a personal device. They are also used to access Apple services—including iCloud and collaboration with iWork and Notes—and Apple Business Manager. Unlike Apple IDs, Managed Apple IDs are owned and managed by your organisation—including password resets and role-based administration. Apple Business Manager makes it easy to create a unique Managed Apple ID for each person in bulk.
Important: A user with a Managed Apple ID can be locked out of their account if they enter an incorrect password more than 10 times, or if the account is suspected of fraudulent activities by Apple. To reset their password, the user must contact an Apple Business Manager administrator, People Manager or another user with password reset privileges. For accounts locked due to suspected fraudulent activities, an Apple Business Manager administrator must contact Apple to have the account unlocked. At that point, the user's password can be reset by the Apple Business Manager administrator.
How Managed Apple IDs are created
Managed Apple IDs are created after you:
Use federated authentication with Microsoft Azure Active Directory (AD)
create accounts manually
Important: Keep in mind that every Managed Apple ID must be unique. It also can not conflict with other Apple IDs that your administrators, managers, and staff may already have.