问题 提问于 2013年11月7日
Hi,
My main domain is current under Exchange Online Plan 1.
I want to add subdomain of this domain to Microsoft Live Account but the system prompted error:
"This domain name can't be used with Admin Center because it's already registered with Microsoft. If you own this domain and want assistance please contact support."
Could anyone please advise me how to do this?
Thank you.
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