All the Atlassian accounts with email addresses from your verified domain become managed accounts. Managed accounts give you the most security and access control over your company’s use of Atlassian products.
To view all the managed accounts for your organization at admin.atlassian.com, select Directory > Managed accounts. From the Managed accounts page, you can search accounts by name and email address. When your search criteria is more than 3 characters, we return results that match at least 3 continuous characters in your search criteria in addition to results that include the full string.
Only accounts with emails addresses of verified domains appear on your Managed accounts page. Other accounts are considered unmanaged, which means you can't make changes to those accounts. Verify a domain for your organization from the Domains page.
As an organization admin, you can perform these operations on your managed accounts:
Deactivate the account, so the user can no longer log in to their account
Delete the account, so the user’s account is permanently gone
You can also use the user management REST API to edit account details and change user account statuses.