Fixing Microsoft Purview Sensitivity Label Auto-Application Failures: A Comprehensive Guide

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IT admins and security engineers face numerous challenges when implementing automatic labeling for compliance purposes. In this blog post, we will discuss the common pitfalls and provide solutions to fix Microsoft Purview sensitivity label auto-application failures.

Key Points

– Auto-labeling policy scope and content matching
– Trainable classifiers vs Sensitive Information Types (SIT)
– Office app version requirements for client-side auto-labeling
– SharePoint and OneDrive sensitivity label support
– Validation through label activity reports

Solution / Walkthrough

Verify the Auto-Labeling Policy Status

Ensure that your auto-labeling policy is set to Active (not just Simulation) in Microsoft Purview.

Test Content Matching

Check if the SIT or trainable classifier accurately matches your content using Test in Data Classification feature within Microsoft Purview.

Office App Version Requirements

For client-side auto-labeling, users need Office 365 apps with appropriate licenses such as Microsoft 365 E5 Compliance or equivalent.

SharePoint and OneDrive Sensitivity Label Support

Confirm that sensitivity labels are enabled at the tenant level for SharePoint and OneDrive.

Label Activity Reports

Review label activity in Purview > Activity explorer, filtering for Automatic labeling activities to understand the status of your auto-labeling process.

Trainable classifiers may take 24 to 48 hours to train and apply at scale.

Conclusion

By following this guide, you can troubleshoot and resolve Microsoft Purview sensitivity label auto-application failures. Ensuring your organization’s data stays secure is crucial for maintaining compliance and protecting sensitive information. ITP Training offers comprehensive courses on Microsoft Cloud Security and other IT technologies to help you master these skills.

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