Azure AD changing name, domain or the company

Question

If we change the name of the company, the domain how would that affect the single sing on created in Azure AD groups for SSO. Do we have to re add them one by one when we change our tenant's name? Or re add certificates only? I think when we rebrand, Microsoft creates another Tentant name and assigns it to the company so we will be controlling two tenants but how that would affect the single sing on from the first tenant? Not sure if Microsoft just transfer everything to a new Tenant. I am not 100% sure how it works, but if anything changes in our domain, do we have to recreate everything in the new tenant? Distribution list and single sing on get affected. What to do to keep everything working?

Answer 1

Hello Falvia,

Hope you are doing well today. If you change the name of your company or domain, it will impact your existing Single Sign-On (SSO) configuration in Azure AD. You will need to update your Azure AD tenant with the new domain name and configure your SSO applications to use the new domain name as the identity provider.

Depending on the extent of the changes made to the domain name, you may need to reconfigure the SSO applications to use the new domain name. In some cases, you may need to re-issue the certificates and update the SSO configurations in the applications.

Microsoft provides guidance on how to update your Azure AD tenant when changing your company or domain name. The steps involved will vary depending on the extent of the changes made. It is essential to review the documentation and follow the recommended steps to ensure that your SSO configurations are updated correctly.

In general, if you are changing your company or domain name, you should plan to reconfigure your SSO applications to use the new domain name as the identity provider. You may also need to update other configurations, such as distribution lists, to reflect the new domain name. It is important to plan carefully and follow the recommended steps to minimize any disruptions to your SSO configurations and other services.

Please let me know if you have any query on the same.

Regards,

Umang Middha

******@gmail.com

Answer 2

I see, but how do we change the existent distribution lists to the new domain? I understand Microsoft will provide assistance but since there is a lot to update, I would like to know what process exist to update the distribution lists, like change the name of the domain one by one in some place in Exchange? I know where to change the display name and the email ID but I don't see where to update the part after, this part @companyname.com. I don't see the option to do that in M365 or Exchange.