Microsoft plans to add an “Authoritative content” control to the Microsoft 365 admin center for Microsoft 365 Copilot Search, giving administrators a way to identify SharePoint sites that should carry more weight in Copilot-driven search results.
The feature, listed as Microsoft 365 Roadmap item 503553, is in development and is currently scheduled for general availability in September 2026 for worldwide standard multi-tenant tenants. Microsoft last updated the roadmap entry on July 17, 2026.
When the feature arrives, admins will find it under Copilot > Search > Authoritative content in the Microsoft 365 admin center. They will be able to add and manage up to 100 SharePoint sites deemed authoritative, with the stated goal of improving those sites’ relevance and ranking in Microsoft 365 Copilot Search.
That matters for organizations with several overlapping document repositories, old intranet areas, duplicate policy libraries, or departmental sites that have gradually become the unofficial source of truth. Rather than hoping Copilot Search infers which copy of a benefits policy or IT runbook is current, administrators will be able to explicitly favor the SharePoint locations that the business considers canonical.
Microsoft has offered an older Authoritative Pages capability in SharePoint’s classic search tooling, but its documentation says that feature applies only to classic search and web parts using the default ranking model. The new roadmap item is specifically framed around Copilot Search and the Microsoft 365 admin center, suggesting a more current administration surface for steering results in Microsoft’s AI search experiences.
In practical terms, marking a site authoritative can help elevate trusted material, but it will not repair bad permissions, remove stale documents, or prevent search from finding content elsewhere. Organizations should review the candidate sites for ownership, current material, sensible information architecture, and access hygiene before treating them as preferred Copilot sources.
The 100-site ceiling also argues against adding every active SharePoint site. The useful candidates are likely to be small, high-confidence repositories: the corporate intranet, approved HR policy site, security knowledge base, IT service documentation portal, engineering standards library, and other maintained sources with clear business owners.
Microsoft’s target is September 2026, though roadmap dates remain subject to change before release.
The feature, listed as Microsoft 365 Roadmap item 503553, is in development and is currently scheduled for general availability in September 2026 for worldwide standard multi-tenant tenants. Microsoft last updated the roadmap entry on July 17, 2026.
A ranking control, not an access control
When the feature arrives, admins will find it under Copilot > Search > Authoritative content in the Microsoft 365 admin center. They will be able to add and manage up to 100 SharePoint sites deemed authoritative, with the stated goal of improving those sites’ relevance and ranking in Microsoft 365 Copilot Search.That matters for organizations with several overlapping document repositories, old intranet areas, duplicate policy libraries, or departmental sites that have gradually become the unofficial source of truth. Rather than hoping Copilot Search infers which copy of a benefits policy or IT runbook is current, administrators will be able to explicitly favor the SharePoint locations that the business considers canonical.
Microsoft has offered an older Authoritative Pages capability in SharePoint’s classic search tooling, but its documentation says that feature applies only to classic search and web parts using the default ranking model. The new roadmap item is specifically framed around Copilot Search and the Microsoft 365 admin center, suggesting a more current administration surface for steering results in Microsoft’s AI search experiences.
Governance still comes first
Admins should not mistake this for a way to make content private or broadly available. Microsoft’s SharePoint documentation makes clear that search results remain security-trimmed: users should only see content they already have permission to access. Separately, site-level search settings and newer discovery controls determine whether content can be indexed or surfaced in organization-wide search and Copilot experiences at all.In practical terms, marking a site authoritative can help elevate trusted material, but it will not repair bad permissions, remove stale documents, or prevent search from finding content elsewhere. Organizations should review the candidate sites for ownership, current material, sensible information architecture, and access hygiene before treating them as preferred Copilot sources.
The 100-site ceiling also argues against adding every active SharePoint site. The useful candidates are likely to be small, high-confidence repositories: the corporate intranet, approved HR policy site, security knowledge base, IT service documentation portal, engineering standards library, and other maintained sources with clear business owners.
What admins should do now
There is no rollout action available while the item remains in development. Administrators can, however, prepare a shortlist of SharePoint sites that contain approved, maintained organizational knowledge and confirm that their permissions and search-indexing settings are correct.Microsoft’s target is September 2026, though roadmap dates remain subject to change before release.