Adding Custom Domain to Azure AD

Question

When trying to verify my custom domain name I get the following error:

This domain has been previously configured on sunvtech.onmicrosoft.com using an existing Azure AD or Office 365. To verify this domain name, you will first need to remove the domain name from the existing directory. Click here for more information.

I am not aware of where sunvtech.onmicrosoft.com might be used and when I try to login with multiple email addresses it says they don't exist. How can I locate where this is currently being used to remove it?

Answer 1

Hello @David Scott

Thank you for your post.

I would like to suggest to review the following aspects below:

Then, you will see the next output:

Also, you can take a look at it like this:

Looking forward to your feedback,

Best Regards,

Please "Accept the answer" if the information helped you. This will help us and others in the community as well.

Answer 2

@David Scott ,

Your issue seems similar to https://learn.microsoft.com/en-us/answers/questions/864786/index.html which references this MSDN post. "Can't verify domain" error message when you try to verify a domain in Office 365 might be of help. The domain could be tied to a MPN subscription in which case you would mitigate from that subscription.