Forum Discussion
Alias from another domain with O365
Greetings,
I will try to explain my question without any errors:
The company that im working bought 2 O365 subscription ( we bought another company in the meantime). They used one O365 subscription for the main company and the other for the new company.
This was the first mistake they made, since they could add the 2 domains under one tennant, if i´m not mistaken.
Question1
We want that the users from the first company to have an alias from the second company. From what i have been digging, that isn´t possible, since these are two driferent tennants.
The solutions i found imply create the domain from tennant b in the main tennant, so that the users can have that alias.
This won´t work since the doamin is already in use in another O365.Am I wrong?
Question 2:
If i invite useres using the Microsoft Entra( Azure), they can acess all the apps? If i have a shared calendar in Tennnat A can the users i invited from tennant B work with it?
I could do a migration, but i thnk i need to buy more licenses on tennant A to acomodate the users from Tennnat B ( and add the domain in tennant A) Once again I´m i Wrong?
9 Replies
For question1, yes, Domain is in separate unless subscript another Domain and attach to your tenant
For question2, it is possible by establish integration such as cross-cloud B2B, btw, seems migration is between for your situation
- Yes, a domain can only exist in a single tenant. Microsoft did preview a functionality that allows "sharing" the domain, but that's still not generally available, afaik. You can however use a subdomain, if that fits your needs.
Guest access allows access to most, but not all workloads. Exchange for example does not support guest access, though if you are only interested in calendar sharing, this can be achieved natively via org relationships: https://learn.microsoft.com/en-us/exchange/sharing/organization-relationships/organization-relationships
If you decide to go with migration, Microsoft should be able to assist with transferring the licenses.Thank you for your reply Vasil.
one doubt arised with your awnser. When you wrote " You can however use a subdomain, if that fits your needs.", what are you implying? How does that Work?
- If you have domain.com added in tenant A, you can add sales.domain.com in another tenant, and any additional subdomains as needed.
