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Home / Retention

Retention

How Long Are Microsoft 365 Audit Logs Retained?

2026.09.26 by Peter Schmidt

Understanding Microsoft Purview Audit retention, licensing, investigation capabilities, and how to build an audit strategy that actually helps when something goes wrong.

Categories Security Tags Audit, Compliance, Microsoft 365, Purview, Retention, Security
Peter Schmidt

Hi, I’m Peter Schmidt.

I’m an independent Cloud & Security Architect based in Denmark, founder of NeoConsulting, and a Microsoft MVP in Microsoft 365 & Security.

I also lead Workplace Ninja User Group Denmark and speak at conferences and community events.

Here, I share practical insights from my work with Microsoft 365, security, governance and Copilot.

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