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Hi team,
Previously we haven't the flexibility to add a new .onmicrosoft.com different then the one created initially.
Now i can see we have the option to use a new one as a fallback domain, however we won;t be able to remove and delete the initial default domain.
can anyone advise if it can't be deleted then what would be the benefit of having 2 .onmicrosoft.com?
thank you
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Hi @eg1995 ,
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Thanks, Shweta
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Just checking in to see if above information was helpful. Please let us know if you would like further assistance.
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Hi, I'm here to confirm with you if your issue has been resolved. If the problem is successfully solved, you can share your solution and mark them or the helpful reply as answer, this will make answer searching in the forum easier and be beneficial to other community members as well.
Multiple .onmicrosoft.com domains are currently only supported by the SPO tenant rename feature, which has a very long list of limitations/known issues. That, combined with the fact that no other workloads support this, explains why you cannot remove the initial domain. It's not a "fallback" option, it's something that the service still relies on.
can you please elaborate on the issues? because based on my understanding only sharepoint link needs the .onmicrosoft.com and this can be changed by powershell. And any other services will be linked to the custom domain that will be added ( exchange online, teams..) so there wouldn't be an impact if i'm guessing it right.
thanks
Hi @eg1995 ,
When you sign up for Microsoft 365, Microsoft provides an onmicrosoft.com domain - your fallback domain - in case you don't own a domain, or don't want to connect it to Microsoft 365 (for example, tailspintoys.onmicrosoft.com).
You could refer to: Add and replace your onmicrosoft.com fallback domain in Microsoft 365
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