Microsoft is expanding what Copilot Notebooks can use as a source of information, with Power BI reports becoming available as references for Microsoft 365 Copilot users.
The update begins rolling out worldwide in late September 2026 as a public preview, with general availability scheduled to begin in late October 2026. The rollout is expected to reach organizations in stages, with preview completion targeted for mid-October and general availability completion targeted for mid-November.
The change connects two parts of Microsoft’s workplace AI ecosystem: Copilot Notebooks, which organizes files and other business context around a project, and Power BI, Microsoft’s business intelligence platform for analyzing organizational data.
For companies already using both products, the practical effect is straightforward: Power BI reports can become another knowledge source that Copilot can use when creating summaries, presentations and briefs.
What Is Changing in Copilot Notebooks?
Copilot Notebooks is designed to give Copilot a defined collection of information to work with rather than relying on a broad pool of organizational content.
Microsoft’s support documentation says users can add relevant content as notebook references and then ask Copilot to analyze that material, identify themes, answer questions or create new content based on it. References can include files and other Microsoft 365 content, depending on the user’s licensing and permissions.
The new Power BI capability extends that model to business intelligence reports.
Instead of keeping a Power BI report separate from the documents and notes surrounding a project, users will be able to bring the report into the notebook as a reference.
That gives Copilot another type of context: structured business information represented through Power BI reports, alongside the documents and other material already associated with the notebook.
Why Power BI Data Matters for Copilot
Generative AI can produce polished summaries from documents, but business decisions often depend on information that lives somewhere other than a Word document or PowerPoint presentation.
Sales performance, financial trends, operational metrics and other business indicators may be maintained in Power BI. Microsoft describes Copilot in Power BI itself as an experience that can help users interact with reports and semantic models, including generating report summaries and answering questions about data.
Adding Power BI reports to Copilot Notebooks brings that analytical context into a broader workflow.
For example, a project team could maintain a notebook containing:
- Project documents and presentations
- Meeting notes
- Relevant emails or Microsoft 365 content
- Planning materials
- A Power BI report containing the project’s business metrics
Copilot can then use the notebook’s references when generating requested content.
The important distinction is that the feature is not simply about attaching a dashboard for people to look at. Microsoft says the report can serve as a knowledge source for Copilot, allowing generated outputs to be grounded in the organization’s business data.
The Rollout Starts in September 2026
Microsoft’s September 19 Message Center notice outlines a two-stage worldwide rollout.
Public Preview
The public preview is scheduled to begin in late September 2026 and is expected to complete by mid-October 2026.
General Availability
General availability is scheduled to begin in late October 2026, with Microsoft’s rollout expected to complete by mid-November 2026.
As with other Microsoft 365 cloud rollouts, those dates describe the start and expected completion of a staged deployment rather than a guarantee that every user will see the capability on the same day.
Organizations may therefore see the feature appear at different points during the rollout window.
No Additional Setup Is Expected
For organizations that already have the relevant Microsoft products enabled, the administrative impact appears limited.
According to Microsoft’s Message Center notice, no additional setup is required beyond having Power BI and Copilot already available to users. The capability will become available automatically as the rollout reaches the organization.
That means IT teams do not need to deploy a separate application simply to make Power BI reports available as notebook references.
There is, however, an important underlying consideration: access and permissions still matter.
Microsoft’s Copilot Notebook documentation states that Copilot only uses content that users have added as references and that they have permission to access.
That principle is particularly important when business intelligence data enters an AI workflow.
What This Means for Business Users
For employees who already use Power BI and Microsoft 365 Copilot, the feature could reduce the separation between analysis and communication.
A typical workflow today might involve opening a Power BI report, reviewing the numbers, switching to a document or presentation, and then manually turning those findings into an executive update.
With the new capability, the report can sit alongside the other project references inside Copilot Notebooks.
That creates a more unified context for tasks such as:
- Preparing an executive briefing
- Summarizing project performance
- Creating presentation material
- Drafting status updates
- Combining qualitative notes with quantitative results
- Reviewing business trends alongside supporting documents
The benefit is not necessarily that Copilot replaces the underlying analysis. Instead, it gives the AI more relevant material to use when transforming business information into another format.
The Bigger Story: Moving From Documents to Business Context
The update also reflects a broader direction in Microsoft’s Copilot strategy.
Earlier Copilot workflows often centered on documents, emails, meetings and other productivity content. Microsoft’s current Copilot Notebooks experience already aims to bring different types of work information into a single context for AI-assisted reasoning.
Power BI adds another layer because reports represent information about how an organization is performing.
That matters when an AI-generated brief needs to answer more than “What did the team discuss?”
It may also need to answer questions such as:
- What happened to sales performance?
- Which business metrics changed?
- How does current performance relate to the project discussed in the documents?
- What data should be highlighted in a stakeholder presentation?
When the relevant report is included as a reference, Copilot has a direct business-data source to incorporate into those workflows.
Organizations Without Power BI Won’t See a Change
The rollout is targeted at organizations that use Power BI.
Microsoft’s notice specifically states that organizations without Power BI will see no change from this update.
That makes the feature particularly relevant to organizations that have already invested in Microsoft’s data and productivity stack.
For those companies, the update does not require replacing existing reporting processes. Instead, it adds another way to use reports as part of an AI-assisted workflow.
Permissions Remain an Important Consideration
Bringing business intelligence into generative AI also makes information governance especially important.
Microsoft’s documentation emphasizes that Copilot Notebook references are tied to user access. Copilot does not simply gain unrestricted access to an organization’s content because a notebook exists; it works with references and content the user is permitted to access.
That means organizations should continue to pay attention to existing Power BI permissions and Microsoft 365 access controls as the feature rolls out.
For business users, the practical lesson is equally important: adding a report as a reference does not eliminate the need to understand what the report contains, how its metrics are defined, or who is authorized to see the underlying information.
What IT and Business Teams Should Watch
No special deployment action is currently called for, but organizations can still use the rollout period to prepare.
Key points to monitor:
- Licensing: Confirm that users have the required Microsoft 365 Copilot and Power BI access.
- Permissions: Review whether users can access the reports and business information they intend to reference.
- Data quality: AI-generated output is only as useful as the information and definitions behind its sources.
- Pilot workflows: Identify reporting and briefing tasks where combining documents with Power BI data could be useful.
- Governance: Keep existing controls around sensitive business information in place.
Microsoft’s broader Power BI documentation also makes clear that Copilot experiences depend on the specific Power BI scenario, available capacity and user access.
What Happens Next?
The immediate milestone is the late-September public preview, followed by the general availability rollout beginning in late October.
The significance of the update will ultimately depend less on the ability to attach a report and more on how organizations use that capability.
If Copilot Notebooks can consistently combine business metrics with the documents, notes and other context surrounding a project, the notebook becomes more than a document collection. It becomes a working context for turning organizational information into new outputs.
For Microsoft 365 users already working across Copilot and Power BI, the next few months will show how useful that connection becomes in everyday reporting, planning and decision-making workflows.
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