Jeff Teper, Microsoft’s Executive Vice President for Microsoft 365 Collaborative Apps and Platforms, stood on stage this morning and said something that every IT leader with files still sitting in Box, a legacy file share, or a third-party cloud storage platform needs to hear: SharePoint is now the number one citation source for Microsoft 365 Copilot and agents.
Not OneDrive. Not Teams. Not your CRM. But the platform that’s just celebrated its 25th birthday, SharePoint.
That reframes a question a lot of organizations are still treating as a housekeeping item — where to store files — into a strategic decision about how well your AI will actually work.
Copilot runs on SharePoint. Here's the proof.
The diagram on the slide behind him (see above) during his keynote told the story clearly. SharePoint sits at the center of the Microsoft AI stack, feeding content into Copilot, Office Apps, Copilot Studio, and Azure AI Foundry (via WorkIQ). Three capabilities flow from it: Content Understanding and Enrichment, Semantic Search and Agentic Retrieval, and Metadata and Governance.
In simple terms, when Copilot looks for an answer, it’s reaching into SharePoint first. If your content isn’t there — or if it’s there but badly structured, poorly tagged, or sitting in folders nobody’s touched since 2019 — Copilot can’t find it, can’t use it, and can’t cite it.
Garbage in, garbage out as they say. Except now the stakes are your AI investment.
What we're seeing on the ground
We’ve been talking to clients about this shift for months. But what’s striking right now is the pace of change.
Organizations that were comfortable leaving content in Box or migrating off aging file shares “when they got to it” are suddenly treating this as urgent. And rightly so. The return on your Microsoft 365 Copilot licenses is directly tied to the quality, structure, and location of your content.
We’re already seeing a meaningful uptick in migration projects — teams moving off file shares and cloud storage platforms like Box into SharePoint Online, specifically because they want their Copilot to work properly.
What this means for your Microsoft 365 Copilot investment
If you’re investing in Copilot — or planning to — your SharePoint environment is no longer just an intranet. It’s the foundation your AI runs on.
That means three things matter more than ever:
Where your content lives. If it’s not in SharePoint Online, Copilot can’t reach it.
How it’s structured. Flat folder hierarchies and inconsistent naming conventions will undermine agentic retrieval. Metadata matters.
Whether it’s governed. The wrong content surfacing in the wrong context isn’t just unhelpful — it’s a risk. Permissions, retention policies, and content governance need to be part of the migration conversation, not an afterthought.
The window for change is now
Microsoft isn’t being subtle about the direction of travel. Teper’s keynote moment today confirmed what the product roadmap has been pointing to for over a year. SharePoint Online is the intelligent content layer for the entire Microsoft AI stack.
If your content isn’t there, your AI is starting every query with one hand tied behind its back.
We can help you get it there — structured, governed, and ready to work.
Find out more in our latest blog: SharePoint Copilot readiness: why your Box or Dropbox migration can’t wait
Pat McGown, Cloudwell CEO and Microsoft MVP, is at Microsoft 365 Community Conference in Orlando this week. Connect with him on LinkedIn.
Cloudwell specializes in Microsoft 365 and AI readiness. Talk to us about SharePoint migration and Copilot readiness projects.