OneDrive to OneDrive Migration Guide

Organizations often need to transfer users' OneDrive data to another Microsoft 365 tenant while keeping their business files and folder structure organized in the destination accounts. EdbMails OneDrive Migration Tool provides a direct way to migrate OneDrive folders, documents, files, photos, videos, and other supported data from source user accounts to their corresponding target accounts.

For migrations involving multiple users, EdbMails allows administrators to load the required OneDrive accounts, map source users to the appropriate target users, and migrate multiple accounts simultaneously. Incremental migration can be used for subsequent runs to transfer new or modified data, making it suitable for migrations performed in stages while users continue working with their source OneDrive accounts.

This guide explains how to prepare the Microsoft 365 environments, connect the source and target OneDrive accounts, map users, perform the migration, and review the migration results.

What to consider before a OneDrive migration

Before migrating OneDrive data between Microsoft 365 tenants, review the source and target environments and prepare the user accounts involved in the migration.

• Identify users for migration: Determine which OneDrive user accounts and data need to be moved to the target Microsoft 365 tenant.
• Prepare target accounts: Make sure the required users exist in the target tenant, and their OneDrive accounts are ready for migration.
• Review source OneDrive data: Check the files and folders to identify obsolete or unnecessary content that does not need to be migrated.
• Plan user mapping: Match each source OneDrive account with the correct target account to prevent data from being migrated to the wrong user.
• Plan migration batches: For a large number of users, organize the migration into manageable batches instead of moving all accounts at once.
• Consider ongoing changes: If users continue working in the source OneDrive during the migration, plan an incremental migration to transfer new or modified data in subsequent runs.

Best practices for OneDrive migration

Following a few practical measures can help administrators manage OneDrive migrations efficiently, particularly when migrating data for multiple users between Microsoft 365 tenants.

• Review source OneDrive data: Identify obsolete, duplicate, or unnecessary files and folders that do not need to be transferred.
• Verify source-to-target mapping: Confirm that each source OneDrive site is mapped to the correct target site before starting the migration.
• Run a pilot migration: Migrate a small set of OneDrive sites first to verify the connection, mapping, and expected migration results.
• Migrate in manageable batches: For larger environments, organize OneDrive sites into batches to make migration progress easier to monitor and manage.
• Consider active users: If users continue adding or modifying files in the source OneDrive, plan the migration accordingly to account for those changes.
• Review migration logs: Monitor the migration status and review the logs for completed, skipped, or failed items that may require attention.
• Perform incremental migration: After the initial migration, run an incremental migration to transfer new or modified data before completing the final transition to the target tenant.

Benefits of EdbMails for OneDrive migration

EdbMails provides practical migration features for transferring OneDrive data between Microsoft 365 tenants while giving administrators control over site selection, mapping, and migration.

• Simultaneous OneDrive migration: Migrate multiple OneDrive sites simultaneously, which is useful when handling migrations involving many users.
• Selective migration: Select the required OneDrive sites and migrate only the data needed for the target environment.
• Automatic and manual mapping: Automatically map matching source and target OneDrive sites, with the option to modify the mapping manually when required.
• Incremental migration: Use incremental migration to transfer new or modified data in subsequent migration runs without unnecessarily processing previously migrated content again.
• Migration logs: Review the migration results to identify completed, skipped, or failed items that may require attention.
• GUI-based migration workflow: Perform the OneDrive migration through the EdbMails interface. Some optional or manual Microsoft 365 preparation tasks may use administrative PowerShell steps where documented.
• 24/7 technical support: Get assistance from the EdbMails support team throughout the OneDrive migration process.

---

Additional resources:

• OneDrive Migration Project Plan
• OneDrive Pre-Migration Planning
• OneDrive Migration Checklist
• OneDrive Post-Migration Validation