Enterprise Vault to Microsoft 365 Migration

Moving mailboxes to Exchange Online is the easy part. The Enterprise Vault archive behind them, with its shortcuts, journal vaults and retention categories, is where projects stall. Future Matrix Tech migrates Enterprise Vault archives to Microsoft 365 as a managed project, using Transvault software. We are an official Transvault partner.

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What has to move

• Mailbox archives for active users, mapped to the primary mailbox or the Microsoft 365 archive mailbox.
• Shortcuts in user mailboxes, which must be replaced or cleaned up so users are not left with links to a retired server.
• Journal archives, which hold a compliance copy of all mail and need a target that preserves envelope information and immutability.
• Leavers and orphaned archives, which need a licensing and retention decision before they move.
• PST files previously ingested or still scattered across file shares.

Design decisions we settle before migration

How we run the project

1. Assess the Enterprise Vault environment: sites, vault stores, partitions, indexes, archive counts and health.
2. Design the migration architecture, mappings and batching plan.
3. Prove the design with a proof of concept and a user pilot.
4. Migrate in scheduled batches aligned with your mailbox migration waves.
5. Validate each batch with source-to-target reconciliation and audit reports.
6. Cut over users, handle shortcuts and confirm access.
7. Decommission Enterprise Vault servers and storage once evidence is signed off.

The full lifecycle and deliverables are described on our Transvault migration services page.

Why not export to PST?

PST export is slow, loses the link between shortcut and archived item, gives no item-level audit trail and leaves you with files that still need to be imported and tracked. For a handful of mailboxes it can work. For an enterprise archive with compliance obligations it creates more risk than it removes.

Related services

If the mailboxes themselves still need to move, or if you plan to keep an independent backup of Microsoft 365 after migration, we can cover both. See Commvault services for Microsoft 365 data protection and professional services for wider migration support.

Frequently asked questions

Which Enterprise Vault versions are supported?

Version support is defined by Transvault. We check your exact Enterprise Vault version and storage configuration during assessment.

Will users lose access to archived mail during migration?

No. Access is maintained until a user is cut over, and the shortcut plan is designed so archived items remain reachable throughout.

Can journal archives go to Microsoft 365?

Yes, with the right design. Journal data needs a target model that keeps recipient information and meets your compliance rules, which we agree with your legal and compliance team first.

Can you migrate from Enterprise Vault to a platform other than Microsoft 365?

Transvault publishes support for several targets. Tell us the target and we will confirm what is supported.