Forum Discussion

anoopknarayan's avatar
anoopknarayan
Copper Contributor
Jul 20, 2016

Single Tenant Multiple forest

I would request a support in clarifying a doubt that we have before implementing the Office 365. We have an environment where we have four separate forest (AD for four separate countries trusted between each other). Our doubt is whether Single tenant multiple forest works in our case? From the Microsoft forums and technets came to know that it is possible with AADConnect. Is it true? Our vendor claims it is tested and proved only for 2 forest can be added to a single tenant

Hope you could help us here with the possible solutions and suggestions

Microsoft 365 Groups
office 365
  • Mike Platvoet's avatar
    Mike Platvoet
    Steel Contributor
    Jul 20, 2016

    Hi Anoop

    With the latest version of AADConnect it is possible to add multiple forests for synchronization with AAD. That is more than two forests. So it should be working fine, but I have not tested it myself.

    Note that the first domain that you add will be the master domain and if any other domains are added, the domain values of the master are used when any descrepancies with the other domains occur. A trust between the domains is not required for this.

Resources