SharePoint Online Tenant Rename is now generally available without site count limits, enabling domain name changes for all tenants starting October 16, 2025. It supports business continuity, Microsoft 365 integrations, and requires SAM licenses for tenants with over 10,000 sites. Vanity domains and Multi-Geo are unsupported.
Organizations undergoing rebranding, mergers, acquisitions, divestitures, or tenant consolidations often need their SharePoint domain name in URLs to reflect their new identity. The SharePoint Online Tenant Rename feature enables this change. We are announcing general availability of advanced tenant rename with no site count limitation. With this update, the feature is now accessible to all customers, regardless of the total number of sites in the tenant.
When this will happen:General availability begins worldwide on October 16, 2025. Rollout started in early October and is expected to complete by mid-October 2025.
How this affects your organization:
Compliance considerations:
No compliance considerations identified, review as appropriate for your organization.