M365 eDiscovery: Search, Hold & Export
Microsoft Purview
Sep 26, 2025 6:13 PM

M365 eDiscovery: Search, Hold & Export

by HubSite 365 about Jonathan Edwards

No-Faffing Managed IT Support & Cyber Security Support. Made in Yorkshire, built for the UK.

Microsoft Three Sixty-Five eDiscovery guide create cases search Teams SharePoint place holds export for compliance

Key insights

  • Microsoft 365 eDiscovery: A compliance tool that helps teams search, preserve, and export data across Exchange, SharePoint, OneDrive, and Teams for legal or regulatory needs.
    Use it when you must locate evidence, respond to audits, or support litigation.
  • Discovery (Standard) vs eDiscovery (Premium): Standard covers basic searches and holds for common cases; Premium adds advanced review, analytics, and automation for complex or large investigations.
    Choose Premium for heavy case workloads or when you need advanced processing and AI-assisted review.
  • Create a Case: Start by creating a named case in the Microsoft 365 compliance center and assign the eDiscovery Manager role to responsible users.
    Add custodians and data locations (mailboxes, Teams, OneDrive, SharePoint) to keep investigation data organized.
  • Build Searches: Define keywords, date ranges, custodians, and locations to narrow results. Use Boolean operators (AND, OR, NOT) and filters to refine queries.
    Run iterative searches and adjust terms to improve precision before preserving or exporting data.
  • Legal Hold: Place holds on mailboxes, sites, or accounts to prevent deletion or change of relevant data during the investigation.
    Monitor hold status to ensure key evidence remains intact and defensible.
  • Review & Export: Add search results to a review set, tag or classify items, then export in common formats (CSV, PST, ZIP) for legal teams or external review.
    Close the case after final exports and documentation to complete the investigation lifecycle.

Introduction: Video Overview and Purpose

Jonathan Edwards presents a hands-on YouTube tutorial that walks viewers through Microsoft 365 eDiscovery (Standard) step by step, using a practical example from a fictional law firm. The video demonstrates how to create a case, run searches, place content on hold, review results, and export data for legal or compliance needs. Consequently, the tutorial targets IT administrators, compliance officers, and business owners who must protect and recover Microsoft 365 data during investigations.


The instructor uses the "Jones Case" scenario at Hawthorne Bell Solicitors to show how to find emails, Teams messages, and SharePoint documents in a few clicks. As a result, viewers see both the practical workflow and the rationale behind each step. This article summarizes the video objectively, highlights tradeoffs, and discusses challenges when using the tool in real environments.


Key Steps Demonstrated in the Tutorial

First, Edwards explains how to assign the necessary permissions and create a case in the Microsoft 365 compliance center, emphasizing role-based access. Next, he demonstrates adding custodians and data sources such as mailboxes, OneDrive, SharePoint sites, and Teams locations to the case so searches target the right places. Then, he shows how to build searches by combining keywords, date ranges, and Boolean conditions for more precise results.


Following the search run, the tutorial covers placing preservation holds on identified content to prevent deletion or alteration during an investigation. Edwards also walks through adding items to a review set, tagging results, and finally exporting findings in formats suitable for legal review. Therefore, the video functions as a complete end-to-end example that beginners can follow and adapt to their own investigations.


Benefits and Practical Advantages

One advantage the video stresses is that Microsoft 365 eDiscovery covers a wide range of services, including modern collaboration tools like Teams, which many other systems miss. Consequently, organizations can capture emails, chat messages, documents, and files from multiple sources in one framework. In addition, the Microsoft 365 compliance center centralizes case management and employs role-based controls to limit access to sensitive investigations.


Moreover, the tool supports legal defensibility by preserving evidence through holds and providing export formats that outside counsel and forensic teams commonly accept. In other words, the platform helps institutions meet regulatory obligations while keeping a clear audit trail. Edwards highlights these practical benefits with a focus on repeatable steps and common settings.


Tradeoffs and Limitations to Consider

Despite its advantages, the video notes tradeoffs that teams must weigh before relying solely on eDiscovery. For example, more granular searches and broader coverage increase processing time and may require additional storage or export effort, which can slow investigations. Therefore, teams must balance search precision against query scope to avoid overwhelming the review process with irrelevant results.


Another limitation concerns permissions and complexity: setting up roles, custodians, and data scopes requires careful planning to avoid over-permissioning or missing key sources. Additionally, while the tutorial shows clear steps for common scenarios, real-world environments often have hybrid architectures, third-party apps, and compliance policies that complicate discovery and preservation. Thus, organizations should plan for these factors and test workflows before a live investigation.


Challenges When Implementing eDiscovery at Scale

At scale, challenges emerge around performance, retention policies, and human factors such as training and coordination between legal and IT teams. For example, applying holds across many users can interact with retention labels or auto-deletion policies, potentially creating conflicts that require policy reviews. Consequently, teams must reconcile organizational retention rules with temporary holds to maintain both compliance and operational efficiency.


Furthermore, exporting large data sets for legal review can be time-consuming and resource intensive, especially when multimedia or Teams chat histories are involved. Edwards points out that refining queries and staging exports in manageable sets reduces bottlenecks and helps legal teams work more effectively. Ultimately, practical success depends on technical preparedness, clear policies, and cross-team communication.


Final Takeaways and Recommendations

In conclusion, Jonathan Edwards’ tutorial provides a clear, practical guide to using Microsoft 365 eDiscovery for standard investigations, illustrating essential steps from case creation to export. The video balances hands-on demonstration with explanations of why each action matters, making it suitable for administrators and compliance professionals new to the tool. Therefore, viewers can adopt the demonstrated workflows while remaining mindful of scale-related tradeoffs.


For organizations, the key recommendation is to pilot eDiscovery workflows in a controlled environment and to document roles and retention policies ahead of live investigations. By doing so, teams can reduce surprises and improve the defensibility of their processes. In short, Edwards’ video is a useful starting point, but real-world deployments require additional planning, testing, and collaboration across legal, IT, and compliance stakeholders.


Microsoft Purview - M365 eDiscovery: Search, Hold & Export

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