Remove a domain in Apple School Manager
You can remove a domain from Apple School Manager if you no longer need to use it. If Managed Apple Accounts have been created using the domain, you’re prompted to update the domain of existing accounts as part of the removal process. If the domain is federated, federation needs to be turned off first. Removing a domain also removes the domain lock.
Remove a domain with no Managed Apple Accounts
Complete this task to remove a domain that has no Managed Apple Accounts associated with it.
In Apple School Manager
, sign in with a user who has privileges to manage federated authentication.Select your name at the bottom of the sidebar, select Preferences
, then select Managed Apple Accounts 
.In the Domains section, select Manage next to the domain you want to remove.
Select Remove Domain, then select Remove Domain.
Remove a domain with Managed Apple Accounts
Complete this task to remove a domain that has Managed Apple Accounts associated with it. After you complete this task, notify affected users that they must sign out and sign back in because the domain associated with their account name has changed.
In Apple School Manager
, sign in with a user who has privileges to manage federated authentication.Select your name at the bottom of the sidebar, select Preferences
, then select Managed Apple Accounts .In the Domains section, select Manage next to the domain you want to remove.
Select Remove Domain, then select Update Domain Name.
Choose a new domain for the users, then select Continue.
A new activity is created.
Choose one of the following:
Stop the activity.
View the activity.
Select Close.
Wait for the activity to complete, then select Done.