Has anyone had success in changing Sharepoint domain name.

Hi Susan,

I have hands-on experience with SharePoint domain renaming.

1. Preparation
- Frist, check if the custom domain *.onmicrosoft.com still is available and not being used by another customer's tenant
- Also check the limitations: https://learn.microsoft.com/en-us/sharepoint/change-your-sharepoint-domain-name#limitations

- Additional notes:

You can only rename your SharePoint domain once. If you need additional renames, submit a support request. Changing your SharePoint domain name back to the original name after you rename it isn't supported.

Microsoft will create a redirect at the previous address which will expire 1 year after the rename.

The actual SharePoint Tenant rename doesn't lead to business downtime.

Keep user activity minimal while the rename is running.

Stop OneDrive sync before starting the rename, and then resume after.

2. Cutover
You can not start the renaming process immediately. You will have to schedule the start of the renaming 24h in advance. PowerShell:
Connect-SPOService -Url "https://domain-admin.sharepoint.com"
Start-SPOTenantRename -DomainName <DomainName> -ScheduledDateTime <YYYY-MM-DDTHH:MM:SS>

3. Post migration
- Check the status of the renaming via PowerShell:
Connect-SPOService -Url "https://domain-admin.sharepoint.com"
Get-SPOTenantRenameStatus