In today’s Microsoft-first workplaces, Microsoft Teams has become central to how people communicate, collaborate, and share files. Whether it’s through chat, meetings, calls, or document co-authoring, Teams generates a huge volume of potentially discoverable data. Data that is increasingly relevant to most eDiscovery matters involving Microsoft 365.
But accessing that data in a way that’s both defensible and efficient isn’t always straightforward.
Here’s what legal and compliance teams need to know when working with Teams data – from how it’s stored, to how to approach collection, processing and review, while navigating its many nuances.
What makes Microsoft Teams eDiscovery complicated?
Teams may look like a single application on the surface, but behind the scenes it draws on multiple Microsoft 365 services, each with its own quirks when it comes to data storage and discovery:
- Chat messages are stored in Exchange.
- Files and meeting recordings are saved in SharePoint Online or OneDrive for Business.
- Private and shared channels each have their own separate SharePoint sites, distinct from the parent Team site.
- Presence and activity data (such as availability status, login/logout times, device info and IP addresses) are often difficult to access and review, but can be critical for building timelines or identifying key events.
Adding to the challenge, Teams data is organised by user (custodian), not by data type. This structure can be particularly tricky when guest users are involved. Each element – whether a message, file, or activity log – might live in a different location depending on how and where it was created.
And all of this comes on top of the wider Microsoft 365 eDiscovery challenges, from over- or under-collection, to retention labels, email archives, attachments stored as links, and limitations in indexing or compliance boundaries. All of these can influence how complete, accurate, and defensible your data collection ultimately is.
Turning raw Teams data into meaningful evidence
- Reconstruct conversations and timelines
- Normalise metadata from different Microsoft 365 sources
- Identify patterns and relationships across Teams, email, and file activity
And it takes a powerful platform (like Reveal) to surface the signals, reduce the noise and uncover what really matters.
Salient's end-to-end support for Microsoft Teams eDiscovery
At Salient, we’ve worked closely with Teams and Microsoft 365 environments across a wide range of cases. We support clients from initial data extraction using Microsoft Purview eDiscovery, through to advanced analysis and review within the Reveal Platform.
Our approach is grounded in:
- A strong understanding of Microsoft 365’s architecture and idiosyncrasies
- A focus on collecting the right data, not just more of it
- Analytical workflows that bring disparate data sets together
- A commitment to defensibility and clarity at every stage
For organisations facing tight timelines or complex data challenges, we provide a practical and transparent path through the eDiscovery process – helping to ensure nothing critical is missed, and that the outcomes stand up to scrutiny.
Contact us today to find out how Salient can support your next eDiscovery project, from targeted collections to insight-driven analysis.
