365 Hybrid schools to a single tenancy question

[password1234]

Hi guys

 

Quick question

 

4 Schools (Each school currently on a hybrid 365 model/ad connect to 365) each has a seperate domain onprem and seperate school email adress.

 

All 4 of them have now federated and are looking to register a new 365 tenancy so emails across all schools are the same

 

do you know if it possible for 4 different onprem domain and different 365 tenanc to sync back to a single new tenancy?

 

or would we have to break each network and redo everything to sync back to the new centralised domain and join each school to a brand new domain?

[Cw2k]

Worth avoiding single tenancy for multiple orgs due to upcoming tenancy storage limitation, you will run out of storage a lot quicker and it is very expensive to add more storage

[jmak]

Multi Tenancy Organisation has come a long way. I'd definitely take a look before you give up all the free storage you have with the separate tenancies.

 

https://learn.microsoft.com/en-us/microsoft-365/enterprise/plan-multi-tenant-org-overview?view=o365-worldwide

[chaplic]

Yes it is. But bear on mind you cannot have the same email address or UPN in 2 tenants. So, what you have to do is map another AD field for the sync

 

e.g. AD to tenant 1, UPN is AD syncs to UPN in O365, proxyAddresses syncs to proxyAddresses

AD to new tenant, Extension Attribute1 syncs to UPN in O365, carLicense syncs to ProxyAddresses