Splitting company into 2 tenants

[PaulSmith2250]

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

[#2]

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