Create sub domain for SharePoint online

Copper Contributor

Is it possible to create a sub domain to host SharePoint Online?


root domain. - Sharepoint online, Onedrive, exchange, Microsoft Entra ID, etc.

sub domain. - SharePoint Online.

Users can use the same Microsoft Entra IDs to login:




2 Replies


No, SharePoint Online does not support subdomains

@mgmjtech2120 Not for SharePoint, but check below Microsoft official documentations for the possibilities to add domains in M365:

  1. Add a domain to Microsoft 365 
  2. Can I add custom subdomains or multiple domains to Microsoft 365? 


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