Forum Discussion
2 Tenants with 1 Active directory forest
Yeah that's not a very good reason. It costs what it costs, basically. If you're larger than the small business tenants allow, then you need to pick from the enterprise plans. That's assuming you want all the features of those plans.
Enterprise E1 is fine for some customers who don't want the Office desktop suite. Some customers also do just fine buying Exchange Online licenses + Office 365 ProPlus licenses, which comes out to less overall than a full E3 license. You might even have a combination of different users, e.g. some that need E3, some that only need Exchange Online, maybe even some that qualify as "Firstline workers".
Splitting into two tenants, aside from the technical impossibility of having the same email domain in two tenants, only adds to the complexity of the overall solution and makes it difficult to properly collaborate across tenants. You'll lose more in time wasted than you'll save on licenses.
Hopefully your boss comes around and accepts the best solution of a single tenant.
Hi Jennifer,
That's not possible, you cannot have the same public domain registered in two tenants.
But is possible to have a split sync between 2 tenants with 1 active directory forest.
Here you have an article that shows the scenarios https://docs.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnect-topologies
So you have to purchase Azure AD connect instead of doing the DirSync in the tenant..correct? Does this also replace the single sign on AD FS?
Hi Jennifer,
Azure AD Connect is the current version, DirSync is discontinued.
You can chose the method of authentication based on your requirements you can have ADFS or just AD Connect.
