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How to use PowerShell to add sub domain to Office 365 Online Portal

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Summary

This article describe a straightforward way to use PowerShell to add sub domain to Office 365 Online Portal

How implement these steps:

1.       Download and install the Microsoft Online Services Module for Windows PowerShell (new version):

Microsoft Online Services Module for Windows PowerShell 32-bit

Microsoft Online Services Module for Windows PowerShell 64-bit

2.       Create a new remote PowerShell connection against the PowerShell endpoint for Office 365:

Import-Module msonline
$cred = Get-Credential
Connect-MsolService -cred $cred
Get-Command *msol*

3.       Add domain to MS Online Services by using below commands:

Set-MSOLContextCredential –MSOLadminCrendentials (get-credential)
Add-MSOLFederatedDomain –DomainName <string>

 

More Information

Install and Configure Windows PowerShell

https://help.outlook.com/en-us/140/cc952756.aspx

Applies To

Microsoft Office 365 for Enterprise

Comments

  • Anonymous
    May 01, 2012
    Hi, I'm aware that Sub-Domain capability is not available in Plan P1, but can you tell me whether Sub Domains are available with the Academic Plans?. Thanks.....

  • Anonymous
    May 01, 2012
    Hi Nadeem, Sub Domains are still available with Academic plan, You can manage your domains from: http://domains.live.com/

  • Anonymous
    June 26, 2012
    Small correction to the command: New-MSOLFederatedDomain –DomainName <string> There is no Add-MSOLFederatedDomain options. Thanks!

  • Anonymous
    April 08, 2014
    Links are broken.

  • Anonymous
    April 24, 2014
    Please add the link to the Microsoft Online Services Sign-in Assistant to this page. It will help users who get the error when they try to install the Microsoft Online Services Module.

  • Anonymous
    September 30, 2014
    The comment has been removed

  • Anonymous
    February 15, 2016
    Hi,


    acccording to the 'important' section of the followinf page :
    https://msdn.microsoft.com/library/azure/jj205461.aspx?f=255&MSPPError=-2147217396

    it is said that :
    "If you are using a subdomain (for example, corp.contoso.com) in addition to a top-level domain (for example, contoso.com), you must add the top-level domain in your cloud service before you add any subdomains. When the top-level domain is set up for single sign-on, all subdomains are automatically set up as well"

    According to that page, there is no action required for the child domains once the parent is set up for SSO

    Am I missing something ?

    Currently have a validated (o365/Azure validated) domain (parent domain) wich is onprem "contoso.net"
    The need is to connect also the "abc.contoso.net" users to o365 :
    - ADConnect connector syncs well the onprem accounts to o365
    - but the o365 login fails with following message
    AADSTS50107: Requested federation realm object 'http://abc.contoso.net/adfs/services/trust/' does not exist.

    Thanks.