Microsoft Purview: Purview Information Protection | Classifier Simulation Mode (Health Monitoring)

Microsoft 365 Roadmap ID: 523201
In development
Microsoft Purview compliance portal
Worldwide (Standard Multi-Tenant)
General Availability
Web
February 2026

Description

Microsoft Purview introduces the Classifier Simulation Mode, the first phase of the broader Classifier Health Monitoring Platform. This capability enables you to test, analyze, and optimize custom classifiers on production data before publishing them, hence offering a reliable means of verifying the effectiveness of classifiers before committing them to live environments. Custom classifiers are powerful tools but can sometimes include inefficient regex patterns or overly broad logic, leading to Noisy classifier due to high matches, False positives and High scanning latency Simulation Mode mitigates these risks by allowing you to validate classifier quality and performance before publishing, helping ensure healthy, performant, and more precise classification outcomes.

Change History

December 4, 2025 at 2:00 AM Updated
Release Date
Previous
December CY2025
New
February CY2026
Modified Date
Previous
2025-11-13T00:15:06.000Z
New
2025-12-04T00:00:38.000Z
November 13, 2025 at 2:00 AM Updated
Release Phase
Previous
Current Channel, Targeted Release
New
General Availability
Modified Date
Previous
2025-11-05T00:00:26.000Z
New
2025-11-13T00:15:06.000Z

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