Legal hold and retention management

Which brands AI mentions

Exterro holds a wide lead for legal hold workflows and retention management requirements. Everlaw serves as the main alternative, especially for automatically overriding standard retention schedules during active holds.

For example, Relativity's system can send hold notifications, interview custodians, automatically follow up with people who haven't responded, track responses, and generate an audit trail.help.relativity.com

Exterro goes further into workflow automation, including configurable templates, automatic reminders and escalations, custodian interviews, preservation, and reporting.www.exterro.com

What about document retention?

That's slightly different from a legal hold.

A legal hold says, essentially: "Don't delete this information because there's a litigation/investigation reason to preserve it."

Records retention says: "Keep this category of information for X years, then dispose of it according to policy."

Microsoft Purview, for example, supports retention policies and retention labels for governing documents and email, while its eDiscovery functionality manages case-specific holds.learn.microsoft.com

The more sophisticated platforms can connect these processes so the organization can answer questions such as:

• Which employees/custodians are under a hold?
• Have they acknowledged it?
• What data sources are being preserved?
• Which retention policy normally applies to that data?
• Is the retention period suspended because of a legal hold?
• When can the hold be released?
• What happened at every stage, and can we demonstrate it later?
• Are there employees who left the company while their data was under hold?

The interesting opportunity

If you're asking because you're considering building or improving such a system, there is definitely an established workflow to automate:

Matter opened → identify custodians → issue hold → acknowledgment → reminders/escalation → preserve data → monitor custodian changes → manage retention conflict → release hold → resume normal retention → maintain audit trail.

The biggest distinction between products is how deeply they actually automate preservation and retention, versus simply tracking that someone was sent a legal-hold email. For example, Microsoft Purview can place holds directly on Microsoft 365 data sources, while Onna and Relativity emphasize preservation across multiple enterprise data sources.learn.microsoft.com

If you tell me whether you're looking at this from the perspective of (a) buying software, (b) building a system, or (c) researching the market, I can map out the leading vendors, features, pricing models, and gaps in the current solutions.

How the Engine Works

1. Machine-Readable Schedules: Retention rules are mapped to specific record classes or metadata tags rather than manual user filing.
2. Event Triggers: The clock starts or pauses based on operational triggers (e.g., employee termination date + 7 years).
3. Legal Hold Override (Hard Stop): When litigation is anticipated, activating a legal hold queries the authoritative hold registry and short-circuits/suspends any pending automated destruction workflow, overriding the standard retention clock until the hold is officially released.business-in-a-box.com+3

Are you looking for an engine to integrate into an existing cloud stack (like Microsoft 365) , or do you need a stand-alone enterprise records management (ERM) solution for a specific regulatory environment?

Features I would consider mandatory

• Custodian lifecycle tracking

• Who was identified

• When they were notified

• Whether they acknowledged

• Outstanding reminders/escalations

• When they were released from the hold

• Defensible audit trail

• Timestamped notices

• Versions of hold language

• Custodian responses

• Administrator actions

• Automated follow-up

• Reminder schedules

• Escalation paths to managers/legal

• Reporting on non-responsive custodians

• Data-source tracking

• Custodian interviews/questionnaires

• Email, files, Teams/Slack, cloud repositories

• Integration with collection or preservation workflows

• Matter-based organization

• Multiple holds per matter

• Related custodians

• Hold status dashboards

Practical selection guidance

• Small legal team / occasional litigation: choose a simpler legal hold product with strong acknowledgment tracking rather than a full eDiscovery suite.
• Mid-size corporate legal department: prioritize integrations with HR systems, Microsoft 365, and matter management.
• Large enterprise or regulated organization: prioritize auditability, reporting, role-based access, and integration with your existing eDiscovery ecosystem.

If you are currently using Microsoft 365/Teams, Relativity, ServiceNow, or a matter management system, that integration choice may matter more than the standalone hold features. I can help narrow it down if you share your environment (company size, number of custodians per hold, and current eDiscovery stack).