Splitting company into 2 tenants

%3CLINGO-SUB%20id%3D%22lingo-sub-1604025%22%20slang%3D%22en-US%22%3ESplitting%20company%20into%202%20tenants%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1604025%22%20slang%3D%22en-US%22%3E%3CP%3EHi%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EMy%20company%20is%20about%20to%20go%20through%20a%20demerger%20meaning%20I%20need%20to%20create%20a%20second%20Office%20365%20and%20Azure%20tenant%20to%20migrate%20the%20users%20too%20from%20the%20demerged%20company.%20I%20will%20be%20moving%20the%20domain%20name%20to%20the%20new%20tenant%20and%20migrating%20the%20accounts.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3ECurrently%20we%20have%201%20AD%20domain%20for%20all%20users%2C%20is%20it%20possible%20to%20sync%202%20tenants%20to%201%20AD%20domain%20or%20will%20I%20need%20to%20create%20a%20new%20one%20to%20set%20up%20ADSync%20for%20the%20new%20tenant.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EKind%20Regards%3C%2FP%3E%3CP%3EPaul%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-1604390%22%20slang%3D%22en-US%22%3ERe%3A%20Splitting%20company%20into%202%20tenants%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1604390%22%20slang%3D%22en-US%22%3E%3CP%3EHey%26nbsp%3B%3CA%20href%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F767063%22%20target%3D%22_blank%22%3E%40PaulSmith2250%3C%2FA%3E%2C%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EWhile%20you%20certainly%20can%20sync%20from%20one%20AD%20domain%20to%20different%20tenants%2C%20you%20will%20have%20to%20plan%20out%20for%20example%20which%20OU%20syncs%20to%20which%20tenant%20via%20a%20different%20ADconnect%20server%2C%20here%20is%20the%20official%20documentation%20from%20Microsoft%3A%3C%2FP%3E%3CP%3E%3CA%20href%3D%22https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fazure%2Factive-directory%2Fhybrid%2Fplan-connect-topologies%23each-object-only-once-in-an-azure-ad-tenant%22%20target%3D%22_blank%22%20rel%3D%22noopener%20noreferrer%22%3Ehttps%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fazure%2Factive-directory%2Fhybrid%2Fplan-connect-topologies%23each-object-only-once-in-an-azure-ad-tenant%3C%2FA%3E%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EThat%20being%20said%2C%20There%20is%20more%20to%20consider%20here%2C%20like%20one%20domain%20can%20only%20be%20added%20into%20one%20tenant%20at%20a%20time%20and%20how%20you%20would%20be%20migrating%20data%20out%20of%20source%20to%20destination%20tenant.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EThanks%3C%2FP%3E%3C%2FLINGO-BODY%3E
Occasional Visitor

Hi

 

My company is about to go through a demerger meaning I need to create a second Office 365 and Azure tenant to migrate the users too from the demerged company. I will be moving the domain name to the new tenant and migrating the accounts.

 

Currently we have 1 AD domain for all users, is it possible to sync 2 tenants to 1 AD domain or will I need to create a new one to set up ADSync for the new tenant.

 

Kind Regards

Paul

1 Reply

Hey @PaulSmith2250,

 

While you certainly can sync from one AD domain to different tenants, you will have to plan out for example which OU syncs to which tenant via a different ADconnect server, here is the official documentation from Microsoft:

https://docs.microsoft.com/en-us/azure/active-directory/hybrid/plan-connect-topologies#each-object-o...

 

That being said, There is more to consider here, like one domain can only be added into one tenant at a time and how you would be migrating data out of source to destination tenant.

 

Thanks