Migration

The migration phase handles the actual content transfer from source to target mailboxes.

What's migrated

• Email — all folders, messages, and attachments
• Calendar — events, recurring meetings, attendee lists, Teams meeting links
• Contacts — personal contacts and contact folders
• Tasks — Outlook tasks and to-do items (where supported)

Batching

Migrations are executed in batches. You control:

• Batch size — number of users per batch
• Scheduling — start immediately or schedule for a specific time
• Priority — which users to migrate first (e.g. VIPs, executives)

Monitoring

The migration dashboard shows:

• Overall progress (percentage, items migrated)
• Per-user status: Pending, In Progress, Completed, Failed
• Error details for failed items with retry options

Retries

Failed items can be retried individually or in bulk. TenantLift tracks which items have been successfully migrated to avoid duplicates.