Phone  +49 89 215 442 400

Active Directory Migration and Standardization

For more than 10 years we have successfully been involved in Active Directory migration projects. AD migrations belong to the core business of FirstAttribute.

Trust our experience - We know the typical pitfalls and and help you to accomplish a smooth and fail-free Active Directory migration.


"Soft" Active Directory Migration

No interruption for the users - that is what a soft AD migration means:
During the Active Directory Migration the users can continue to work and access their resources at any time. The only break should the migration the users computer itself with an interruption time of a very few minutes. Unnecessary downtime can be prevented and the productivity is not restricted. That is what a successful Active Directory migration means for us.

Sequence of a successful AD migration

  • Analysis of the existing Active Directory domain(s)
  • Execution of optimization in the existing environment, especially if they are necessary for the Active Directory migration
  • Hold workshops for the planning of the new Active Directory environment
  • Definition of the migration and the implementation of the tools to be used
  • Preparation of a rollout plan including a definition of a test and pilot migration
  • Development of the target environment, in case it does not yet exist
  • Development and implementation of the migration tool
  • Execution of the test migration using test-systems
  • Execution of the pilot migration using productive systems
  • Analysis of the pilot-migration results
  • Execution of necessary adaptions based upon the analysis of the pilot migration
  • Execution of the rollout
  • Removal of the migrationtool and, if necessary, of the source environment


Components to consider while performing an Active Directory migration

  • Infrastructure services like DNS, DHCP, WINS, time synchronization
  • Active Directory replication and trusts
  • Group directives and login-scripts
  • User and group- objects
  • Computer objects
  • Resources like file, print, main and application server


Migration tool selection

An important basis for the success of your Active Directory migration is to use the tools that fit best to your needs and to your environment. We know the market and tools through our long experience in this field. Active Directory migrations can be very unique and special. We help you to choose the tool that fits best. A choice might be Microsoft's ADMT or QMM by Quest (Dell).

The migration tools used by us ensure that as much information as possible can be transferred from the existing Active Directory domain to the new domain. This simplifies and speeds up the Active Directory Migration considerably.

Alternatively, it is also possible to start with an absolutely new Active Directory, in which all objects are created. However, this procedure is recommended only for smaller environments.


As an official and long-time "Quest-Software" partner we have a great amount of expertise in the execution of Active Directory migrations using the "Quest Migration Manager for Active Directory".

You can find information about the Quest Migration Manager for Active Directory here.

Quest Migration Manager for Active Directory

Please contact us if you are facing an Active Directory migration. We would like to consult you and successfully complete the project together with you. Our specialists are used to passing on their knowledge to our mandates and you profit from our Knowhow during the complete project.

Please use our Contact-section if you would like to receive a non-committal consultation about the subject of Active Directory migrations.


. Employees continue working throughout the whole process and the maximum interruption is a reboot of their PCs.

The access to any and all resources is also constantly possible during the Active Directory migration. The Active Directory attribute sIDHistory should be known by anyone who has dealt with the subject of migration. The SIDHistory is responsible for the access of the migrated accounts to not yet migrated resources.

An Active Directory migration is usually done using migration tools, so that as much information from the existing Active Directory domain as possible can be transferred to the new domain. Sometimes it is decided to create a whole new Active Directory where all of the objects are new. This approach is usually only usable in small surroundings.



  • AD Consolidation Project

    AD Migration with Dell Migration Manager for Active Directory

  • Migration of 1,000 mailboxes per day

    Mailbox mass migration with QMM for Exchange in Frankfurt

  • AD Consolidation and DFS in Hamburg

    Active Directory Consulting Project in the banking sector

  • Active Directory Migration with ADMT

    AD Migration project with ADMT

  • Active Directory Migration with Quest Migration Manager

    Hospital group in the east of Munich relies on the know-how of FirstAttribute AG for the Active Directory Migration and Exchange Migration.

  • Active Directory Migration with more than 100,000 objects

    Specialists of FirstAttribute AG support one of the largest IT service providers in the chemical industry in the Active Directory Migration.

  • Active Directory and Exchange Migration completed successfully

    FirstAttribute AG has successfully completed the user and e-mail-migration of an internationally known company in the chemical industry.

  • Framework-contract for IT-integration-project

    FirstAttribute AG has entered a framework contract for IT-integration projects with an internationally known auditing company.

  • FirstAttribute wins project "Active Directory Redesign"

    FirstAttribute was contracted for the "Active Directory (AD) Redesign" and "AD Consolidation" by an internationally known company in the chemical industry.


©2019 FirstAttribute AG - All rights reserved.

Realization Site Point GmbH

Legal notice