Create sub domain for SharePoint online

Question

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

Example:

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

sub domain. test.contoso.com - SharePoint Online.

Users can use the same Microsoft Entra IDs to login:

https://contoso.com/sites/sales

https://test.contoso.com/sites/marketing

jcgonzalezmartin · Answer

Hi,
No, SharePoint Online does not support subdomains

ganeshsanap · Answer

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

Add a domain to Microsoft 365&nbsp;
Can I add custom subdomains or multiple domains to Microsoft 365?&nbsp;

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Create sub domain for SharePoint online

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