Impact of Changing Microsoft Tenant Name on Existing Application Users and Notifications

Question

I am considering changing the name of my Microsoft tenant and would like to understand the potential impacts. Specifically, will this change affect customers who have already authenticated and authorized my application under the current tenant name? For example, could it impact their ability to log in, receive notifications, or interact with services tied to the application? Additionally, will customers receive any email notifications about this change? If there are any dependencies or precautions I should consider before making this change, I would greatly appreciate the guidance.

Answer 1

Hi @tttai

Thank you for posting this in Microsoft Q&A.

I understand you're looking to learn about the impact of changing the Microsoft tenant name on existing application users and notifications.

Changing your tenant name will not affect your customers' ability to log in, receive notifications, or interact with services tied to the application because only the tenant name is changing, not the tenant ID, which remains the same.

If you're using Microsoft Entra ID for authentication (via OAuth, OpenID Connect, or other Azure authentication protocols), it's important to note that the tenant ID is used, not the tenant name. Since the tenant ID remains unchanged after the rename, your users will still be able to authenticate as usual. However, if you're using custom domain names (e.g., mycompany.com instead of tenantname.onmicrosoft.com), you'll need to update redirect URIs, and any related configurations accordingly.

Your customers will not receive automatic email notifications about the tenant name change. It's your responsibility to notify them of the change and provide any necessary information or instructions. Additionally, if you have any custom branding or logos associated with your tenant, these should be updated to reflect the new name.

Please keep in mind that any customer-saved bookmarks or links that include the old tenant's name will no longer work after the rename, so you'll need to communicate this to your customers to avoid confusion.

Hope this helps. Do let us know if you any further queries.

Thanks,

Navya.

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