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When an organization undergoes restructuring, like a merger or an acquisition, it can be costly to maintain two separate Active Directory infrastructures. IT administrators are tasked with migrating objects from one Active Directory Domain Services (AD DS) environment to another to enable the sharing of resources.
Irrespective of the size of the organization and the number of associated objects, the tool and the process of the migration remain the same. The Active Directory Migration Tool (ADMT) is a free utility that facilitates the migration of users, computers, and groups between two Active Directory domains, whether they're in the same forest or in different forests.
Prerequisites for installing Microsoft ADMT
Here are some system requirements for initiating the migration tool:
- The source and the target domains should be running on any one of the following operating systems: Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, or Windows Server 2012 R2.
- Install an SQL Server database instance for ADMT to store data in.
- During migration, use a user account in the BUILTIN\Administrators group of both domains.
- Migration won't work if computers are configured as read-only domain controllers or if they are a part of a server core configuration.
ADManager Plus excels as a multifaceted solution, providing not just a comprehensive IGA platform but also serving as a powerful Active Directory migration tool. With ADManager Plus, organizations can efficiently migrate various Active Directory objects such as users, groups, contacts, and GPOs across different domains and forests within their AD infrastructure.
ADManager Plus serves as an identity governance and administration (IGA) platform, streamlining identity management, enhancing security, and bolstering compliance measures. Through ADManager Plus, you can oversee the entire user life cycle from provisioning to deprovisioning, conduct access certification campaigns, coordinate identity management across various enterprise applications, and safeguard data on your enterprise platforms through regular backups.
Take advantage of the large collection of over 200 reports to learn important information about user identities and their access rights. Improve how well your identity management system works by using workflows, automated tasks, and access control policies based on roles. Also, ADManager Plus has mobile apps for Android and iOS devices, making it easy to manage Active Directory and Entra ID when you're away from a computer.

