Active Directory Forest Migration

Rishank Ganguly

Hi Team,


We are planning to migrate AD forest A to AD Forest B to maintain single root domain.

Environment details:

Forest A : contoso.com  --> Root Domain

                Fabrikam.com --> Added as UPN Suffix domain (used for Email) Public Facing


In Forest B we wanted to eliminate contoso.com as root domain and wanted to make fabrikam.com as root domain.

How do we plan to migrate the user accounts, as we are getting some domain conflict errors while setting AD Trust.


Let me know if someone has a better option to this solution.

2 Replies

You can't remove a root domain from a forest so eliminating contoso.com from ForestA is not possible. 

No! Its like cutting down the tree but wanna keep the branches :)
Renaming ad domains overall is a pain and it’s often a lot less headache just building from scratch!

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