Forum Discussion
cgo
Jan 09, 2026Occasional Reader
Reachability of a domain across multiple tenants
I have a general question about an Entra scenario that we currently need to implement. Our company consists of 3 companies (companyA.com, companyB.com, companyC.com), each with their own MS Tenant. ...
VasilMichev
Jan 10, 2026MVP
A domain can only be verified in a single tenant. The easy solution is to use subdomains, i.e. us.company.com, ca.company.com and so on. More convoluted solutions involve cross-tenant sync, guest users and so on, and why this can help with getting the users into a single tenant, they will still keep their own identity/email addresses, associated with the "home" tenant.