Using the same custom domain in two Azure tenants

Harold Shin 6 Reputation points

We have an email provider that hosts our email using O365 with the custom domain, @company1 in Azure. That email domain is registered in their Azure tenant. We have our own Azure tenant. Is it possible to register and use that same custom domain, @company1, in our Azure tenant? We would like our users to have one account for email and Azure AD. Thanks in advance.

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  1. JamesTran-MSFT 36,531 Reputation points Microsoft Employee

    @Harold Shin
    Thank you for your post!

    When it comes to AzureAD and adding a custom domain to more than one Azure tenant, this currently isn't possible. However, if you'd like this to be implemented, I'd recommend leveraging our User Voice forum so our engineering team can take a look at implementing this feature.


    Thank you for your time and patience throughout this issue.


    Please remember to "Accept Answer" if any answer/reply helped, so that others in the community facing similar issues can easily find the solution.

    2 people found this answer helpful.

  2. Oscar Maqueda 536 Reputation points Microsoft Employee

    Hi, have a look at this maybe it can work for you, if not let me know. Best regards

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