Transfer Microsoft 365 Tenant to Tenant with Permissions

When migrating from one Microsoft 365 tenant to another, transferring the data is merely the beginning. The actual difficulty is maintaining permissions (files/folders) that is view, edit, ownership rights, and external sharing across OneDrive, SharePoint, and Teams.

Manual methods often break these access controls, which causes user disruption and possible security breaches. CloudFuze streamlines this process by offering safe, advanced tenant-to-tenant migration with all file and folder permissions intact.

In this guide, we will take you through the step-by-step process of carrying out a Microsoft 365 tenant-to-tenant migration with files, folders, and access permissions intact.

Microsoft Tenant-to-Tenant Migration

A Microsoft tenant-to-tenant migration consists of transferring the below data from one Microsoft 365 tenant to another:

• OneDrive to OneDrive files
• SharePoint to SharePoint
• Microsoft Teams to Teams
• Outlook to Outlook (optional)

Such migrations are generally needed in situations such as:

• Mergers & Acquisitions
• Company rebranding or restructuring
• IT consolidation for global/regional units
• Compliance and data residency requirements

The Critical Factor: Maintaining Permissions

Permissions in Microsoft 365 are dependent on both user identities (User Principal Names or UPNs) and groups, as well as external sharing links. Losing these permissions during Microsoft 365 cross tenant migration can lead to:

• Broken collaboration workflows
• Unauthorized access or data exposure
• Time-consuming post-migration fixes
• Increased IT support tickets

Our cloud migration tool is designed to overcome these challenges with advanced permission mapping, identity retention, and enterprise-level security.

CloudFuze: Best Tool for Microsoft 365 Tenant Migrations

Companies trust CloudFuze’s enterprise-level Microsoft 365 Tenant Migration tool for full tenant transfer. Our solution ensures the preservation of file and folder structures, metadata, and user permissions.
Here’s how:

• Retention of Sharing Permissions: Precisely replicates root and inner-level permissions.
• Metadata Preservation: Preserves timestamps, file versions, external sharing, and shared links.
• Access Control Lists (ACLs): Maintains file- and folder-level ACLs.
• Automated User Mapping: Automatically maps users between tenants—even if UPNs are different.
• OneDrive & SharePoint Migration: Migrates data and permissions with precision across both environments.
• Security & Compliance: End-to-end encryption, SOC 2 Type 2, GDPR and other compliance standards.
• Scalability & Customization: Teams migration support and partial or phased rollouts.
• Managed Migration Services: Planning, monitoring, and execution with top-notch experts.

How to Perform Microsoft Tenant-to-Tenant Migration with Permissions

Step 1: Pre-Migration Planning

• Conduct a full audit of OneDrive, SharePoint, and Teams data
• Map users (source vs. destination)
• Define migration scope: full or department-wise

Our tool provides CSV-based custom mapping for non-matching UPNs

Step 2: Platform Configuration

• Log in to CloudFuze
• Connect both source and destination Microsoft 365 tenants with admin credentials
• Provide required OAuth permissions

Step 3: Permissions Configuration

• Utilize the User Mapping tool to synchronize accounts
• Select workloads: OneDrive, SharePoint, or Teams

Turn on the following options:

• Migrate permissions
• Maintain links and timestamps
• Keep file versions intact

Step 4: Run Pilot Migration (Optional but Highly Recommended)

• Test with a small set of users
• Ensure data and permission integrity
• Detect any possible migration blockers

Step 5: Run Full Migration (One-time Migration)

• Start or schedule migration
• We offer delta (incremental) sync to capture new/changed content after one-time migration
• Monitor logs and progress dashboards

Step 6: Post-Migration Validation

• Verify that files and folders appear in the right locations
• Test permission integrity:
  • Can intended users access files?
  • Are shared links functional?
  • Are team members still connected with the correct roles?

Our Microsoft 365 Tenant migration tool provides detailed migration reports including status, total data migrated, and total pairs migrated.

Get a full pre- and post-migration audit. Request your free CloudFuze migration assessment.

You can also watch this video for a quick overview of all the migration steps for transferring files between two SharePoint Online accounts.

What CloudFuze Helps You Avoid

• Broken folder structures
• Lost access for shared documents
• Manual re-permissioning post-migration
• User downtime or business disruption

Best Practices for Seamless Migration

• Use CSV mapping if UPNs are different across tenants
• Run a pilot migration to reduce risk
• Allow delta sync to capture incremental changes after one-time migration
• Track permission accuracy
• Inform users of URL or folder path changes after migration

Final Thoughts

If you’re executing a Microsoft 365 tenant-to-tenant migration and need to preserve access permissions, folder hierarchies, and file fidelity, we offer a secure, scalable solution. Our solution provides a smooth transition for small, medium, or large businesses with advanced, enterprise compliance, and professional guidance.

Let’s connect for a free tenant to tenant migration assessment today!

FAQs

1. Does CloudFuze retain OneDrive folder permissions in migration?

Yes, including file-level access and sharing settings.

2. Does CloudFuze migrate SharePoint site and item-level permissions?

Yes. It supports SharePoint ACLs fully, including document libraries.

3. How does CloudFuze manage user mapping between tenants?

Using auto-mapping and CSV uploads, even where UPNs are different.

4. Does CloudFuze have delta (incremental) migrations?

Yes, syncs only new items or changed content after the initial migration (one-time).

5. Is migration secure?

Absolutely. CloudFuze is SOC 2 Type 2, ISO 27001 and GDPR compliant with end-to-end encryption and avoids storing user data after migration completion.