Microsoft Purview | Information Protection - Content Explorer: Unscanned data and Classification History summary metrics
Versions captured by this deployment. Earlier versions and notices may be missing; first observed is not first published.
Rollout
- Ends
- 31 Dec 2026
- Roadmap
- 526796
- Platforms
- Web
Rollout dates are often only in the text. When Microsoft moves them, the change shows under "What changed".
- Microsoft's start date
- 14 Jan 2026
- Last changed by Microsoft
- 7 Jul 2026
- First seen here
- 19 Oct 2026
- Versions seen
- 1
What the notice says
Microsoft's text, with its sections, lists and tables; source markup removedUpdated July 7, 2026: We have updated the timeline. Thank you for your patience.
Introduction
We’re enhancing Microsoft Purview Content Explorer with new summary metrics to improve visibility into scanning and classification activities. These updates will help admins identify unscanned files and monitor classification trends, enabling better data governance and informed decisions.
This message is associated with Roadmap ID 526796.
When this will happen
- Public Preview: We will begin rolling out late July 2026 (previously mid-July) and expect to complete by early October 2026 (previously early August).
- General Availability (Worldwide): We will begin rolling out early November 2026 (previously mid-August) and expect to complete by late November 2026 (previously late August).
How this affects your organization
- Who is affected: Admins managing Microsoft Purview Information Protection and using Content Explorer.
- What will happen:
- A new Unscanned Files Summary will display the count and percentage of files not scanned for classification.
- Classification History Insights will show trends and details of classification changes over time.
- These metrics will appear in Content Explorer alongside existing Sensitive Information Types (SITs) and labels.
- Admins can explore the new metrics to identify gaps and use on-demand classification capabilities to retrigger scans if needed.
- No changes to existing policies or configurations; the feature is enabled by default.
What you can do to prepare
- No action is required.
- These metrics will automatically appear in Content Explorer.
Compliance considerations
| Question | Explanation |
|---|---|
| Does the change alter how existing customer data is processed, stored, or accessed (e.g., documents, emails, chats, etc.)? | The feature accesses existing classification metadata to display trends and scanning status in Content Explorer. |
What changed
Between the versions this installation saw, newest firstThis installation has seen one version of this notice, first on 19 Oct 2026. Later changes will show here.
Linked documentation
Microsoft pages the notice links toThe notice links to no Microsoft Learn or Support page that this installation reads.
Not confirmed here
What this page cannot tell you- Whether your tenant is affected: this is Microsoft's notice, not a check of your settings.
- Versions before 19 Oct 2026: this installation first saw the notice after Microsoft posted it.