Copilot cannot fix stale SharePoint content nobody owns

Copilot returns weak answers when SharePoint contains stale pages, duplicated files, broken links, and content with no owner. Admins must define authoritative sources, assign ownership, and maintain review cycles before AI can surface trustworthy information.

This is a researched blocker from SharePoint & Teams Admins. Below is the solution path — from understanding it to a paste-ready asset.