Yes, CloudBik can migrate large OneDrive for Business accounts without data loss.

CloudBik uses a staged and incremental (delta) migration approach to transfer OneDrive data securely in the background. Large files and folders are migrated in phases, and any new or modified data is synchronized before final cutover. This ensures all files, folder structures, and metadata are preserved accurately.

Definitely — CloudBik can handle large-scale OneDrive for Business migrations without losing data. Their tool enables phased/incremental transfers, preserves files, folders, permissions, metadata, and version history, and reduces downtime. With careful planning and monitoring, it's a dependable option for large accounts switching between Microsoft 365 tenants.