The Documented Limitations of Microsoft 365 Purview eDiscovery Guide
Microsoft Purview has improved meaningfully in the last 18 months. It still falls short in specific, predictable ways for enterprises with serious eDiscovery, compliance, and information governance requirements. This guide documents exactly where Purview's gaps sit, citing Microsoft's own published limitations, and shows where dedicated platforms close them.
Download the guide if you're scoping Microsoft 365 for regulated workloads, evaluating Purview against alternatives, or designing an enterprise eDiscovery architecture for 2026.
Why this guide exists
Microsoft Purview is a capable eDiscovery platform for many M365 customers running standard workloads. For large organizations with strict compliance, legal, and information governance needs, Microsoft has published limits. These limits affect indexing, export, and case management at scale. Our guide documents those constraints, citing Microsoft's own published sources, and explains what each one means for real eDiscovery workflows.
What's inside
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The licensing tiers that determine which Purview eDiscovery features you can access - Standard vs. Premium, commercial vs. government
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Where Purview's case management and workflow features create administrative complexity at enterprise scale
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The export constraints that affect large-scale data extraction
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The case hold limits that affect organizations managing concurrent legal matters
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How Cloudficient Expireon addresses each of these documented Microsoft limitations
