Unable to add subdomain in Azure custom domain page.

Question

Hello,

I am unable to add subdomain under Azure custom domain, this problem has started after moving identity to Google GWS.

Problematic scenario -

Users auto provisioning from GWS to Entra ID is working fine for parent domain but subdomain users are not appearing (auto provisioning) in Entra ID because this domain doesn't exist in Azure.

Example -

******@xyz.com is working fine

******@abc.xyz.com isn't working.

Please let me know if anyone else is facing this issue, or any solution for the same.

Answer 1

If you want to add a subdomain name such as ‘europe.contoso.com’ to your organization, you should first add and verify the root domain, such as contoso.com. The subdomain is automatically verified by Microsoft Entra ID. To see that the subdomain you added is verified, refresh the domain list in the browser.

See: https://learn.microsoft.com/en-us/entra/identity/users/domains-manage#add-subdomains-of-a-custom-domain

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Regards,

Abiola