Office 365 Tenant to Tenant Migration Tool

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Office 365 Tenant to Tenant Migration Tool

The enterprise-grade cross Tenant Migration solution for Microsoft 365 accelerates Mergers, Acquisitions (M&A), Divestitures, and Restructuring.

(Average Rating 4.1 Based on 37 IT Admin Reviews)
  • Full-Scope Migration: Move O365, Teams chats, SharePoint sites, & More.
  • Enterprise Security Guarantee: ISO 27001 certified with OAuth 2.0 Validation.
  • Zero-Downtime Cutovers: Automated delta passes and concurrent routing.
  • Affordable Licensing: Flat per-user pricing; no M365 cross-tenant add-on fees.
  • Skip Scripting: GUI to map hundreds of users instantly with 24/7 SLA support.

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Rated the Best Office 365 Tenant Migration Software by Users and Experts Alike

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Be Ready for Any Microsoft 365 Tenant Migration Scenario

Avoid the most common points of failure in cross-tenant migrations. Download our comprehensive Office 365 Tenant Readiness Checklist to learn how to correctly audit licenses, prepare domains, and handle legacy protocols before your weekend cutover.

Everything You Need for a Same or Cross Tenant Transfer

A complete solution to handle any edge-case your Microsoft 365 Tenant environment presents.

  • OneDrive & Tasks: Migrate files, To-Do lists, and reminders.
  • Custom Folder Mapping: Move Folders as per need.
  • Shared Mailboxes: Convert and migrate shared mailboxes to users.
  • Pause & Resume: Safely halt and restart migrations at any time.
  • Cross-Tenant Licenses: No expensive Microsoft add-ons.
  • Date-Range Filters: Migrate specific quarters or fiscal years.
  • Summary Reports: Export detailed success/failure CSV audits.
  • Category Migration: Preserve color-coded labels and tags.
  • Cross-Platform: Runs on Windows, Windows Server, & Linux.
  • All M365 Plans: Supports Enterprise (E1-E5), Business, & Edu.
  • Credential Free Migration: Migrate without user passwords.
  • Retry Failed Items: Dedicated pass for skipped or errored files.

Office 365 to Office 365 Migration Tool

3-Step Approach to Perform Office 365 to Office 365 Migration

Extraordinary Features of Office 365 Tenant Migration Tool

Best Tool to Migrate Office 365 Account to Another Office 365 Account

Office 365 Mailbox to Office 365 Migration

Office 365 to Office 365 Migration

The Office 365 Tenant to Tenant Migration tool allows moving Office 365 mailboxes to another account with 100% accuracy. It migrates contacts, emails, calendars and documents from one account to another in a seamless way. This software also maintains the Meta properties while migrating data from source to destination tenant.

Add CSV File

Add CSV of Office 365 Mailbox Details

In order to begin the transfer, users have to provide the mailbox credential for source and destination users. To do this, instead of adding them one at a time manually, users can add .csv file having each detail of Source ID, Destination ID of Office 365 users accounts. Office 365 Tenant Migration Software contains sample CSV template.

Office 365 Shared Mailbox Migration

Office 365 Shared Mailbox Migration

The tool is capable enough to migrate Office 365 shared mailboxes data between Office 365 Tenants. The application supports migration of the Office 365 shared mailbox to user mailbox and Office 365 shared mailbox to Office 365 shared mailbox.

Office 365 Archive Folder Migration

Office 365 Archive Folder Migration

This advanced tool provides the facility to migrate Office 365 user data stored in user archive folder between Office 365 mailboxes. By using the tool, users can easily migrate Office 365 archive folder emails to another Office 365 archive folder.

Mails, Documents, etc. Filter

Date Filter for Mailbox Items

The Office 365 to Office 365 migration tool allows to move data from one Microsoft Office 365 to another account and also help to filter the emails received within a certain date range. With this feature, users can export emails, calendars and documents between "From" to "To" date range by setting up filters accordingly.

Migrate Selective Items from O365 to O365

Transfer Mailbox Data Items

Office 365 Cross Tenant Migration utility equips an option to export emails, calendars, contacts, and documents. However, if users want to move only selected items, then they can check or uncheck that item from the software pane. It can only migrate selected items, by preserving the complete folder hierarchy.

Authenticate & Migrate Mailboxes

Authenticate & Migrate Mailboxes

As you are adding the source and destination mailboxes, Microsoft Office 365 to Office 365 Migration Software first maps each user mailbox. Once the mapping is done, it will authenticate mailboxes and proceed with data migration. You can also view the migration process in progress status window after clicking on Start Migration button.

Create Complete Summary Report

Create Complete Summary Report

As you begin the Office 365 transfer; Microsoft 365 to Microsoft 365 migration tool will display the complete details and total count of mailboxes being exported from source to destination. Further, you can see both current or final status report which contains details such as success & failed items, source & destination ID, file name, status, error, etc.

Re-Run Migration Facility

Re-Run Migration Facility

This tool provides three options for re-run migration:

  • Delta Migration: This option will migrate all newly arrived items from source Office 365 account to destination.
  • Re-Run Full Migration: By using this option you can re-run full Office 365 migration. It will migrate those items which are skipped in initial migration.
  • Retry Failed Items Migration: With this re-run migration option, you can move data which are failed in the initial migration process.

Option to Set Priority of Accounts

Option to Set Priority of Accounts

Office 365 to Office 365 migration tool provides an account-based priority option, with this option you can set the priority of Office 365 users accounts to migrate first. To enable account-based priority you have to click on the start icon. Once this option is enabled, the tool will migrate these accounts data first.

Configure Multiple Office 365 Project for Migration

Move Multiple Office 365 Users

The tool allows configuring more than one Office 365 user accounts. By applying this option, you can migrate user's account data from multiple Office 365 account at a time. You need a highly configured machine to perform multiple Office 365 project migration.

Stop Migration Option

Stop Migration Option

The tool provides a stop migration option with which you can stop all ongoing Office 365 to Office 365 migration process. This option will stop running the migration process of all users' data. You can restart the migration process by clicking on Start Migration button again.

FreeViewer M365 Tenant Migrator Simplifies Complex M&A

Manage Mass Architectural Shifts | Skip API Limits | Bypass Hidden License Costs

OAuth 2.0 & ISO 27001 Security

Never store global admin passwords. Our Office 365 Tenant migration tool utilizes strict OAuth 2.0 token-based authentication, functioning as a secure pass-through pipeline for corporate data.

Teams, SharePoint, & Folders

Move beyond standard Exchange mailboxes. Natively transfer 1:1 Personal Teams Chats, complete SharePoint Online sites, and complex Public Folders during a Microsoft 365 tenant migration.

Pre-Migration Assessment & Audit

Scan the source environment before moving data. Calculate volume, identify corrupted items, and verify destination licensing (E3/E5) to prevent mid-project failures during a cross tenant migration Office 365.

Bypass Microsoft Throttling

Native PowerShell methods stall due to backend API limits. Our concurrent routing engine intelligently distributes workloads, ensuring maximum transfer speeds for an Office 365 Tenant to Tenant migration.

No Cross-Tenant License Fees

Avoid hidden Microsoft licensing costs. You do not need to purchase expensive native cross-tenant add-on licenses to execute the data transfer across disconnected domains.

Mail Routing & Coexistence

Maintain business continuity during phased M&A transitions. Retain calendar free/busy states and continuous mail forwarding between the source and target tenant.

Office 365 Tenant Migration Software – System Specifications

Download the Best Office 365 to Office 365 Migration Tool for Free

Software Download

Size: 177 MB

Version: 7.7.0

MD5: 75fde62882d09a10eed8c8fb60e5a11c

Trial Limitations

Limitations
Trial version of this Microsoft 365 migration software can transfer / move only two users data from one account to another.

System Specifications

Hard Disk Space
500 MB of free hard disk space required

RAM
8 GB is Recommended

Processor
Minimum 4 Core Processor 2.3GHz

Application Pre-Requisites

Pre-Requisites

  • If you are using Windows 10/8.1/8/7 or Vista, then please launch the tool as "Run as Administrator".
  • Microsoft .NET framework 4.5 and Above Version.
  • Destination User(s) should be already created at destination Admin account.
  • User Group(s) should be already created at destination account.
  • Register Application with Microsoft Azure Active Directory & Enable API Permission for Source & Destination Domains.

Supported Versions

Microsoft Windows
Windows 10 (64-bit), Windows 2012 / 2016 Server

FAQs

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Electronic Delivery

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Choose the Right Office 365 Tenant Migration Tool

Our Free Demo is fully unlocked. Test VIP routing, delta passes, and OAuth 2.0 authentication on 2 users before executing your cross tenant migration Office 365.

Migration Capabilities Free Demo
Try for Free
Full Version
Production Ready
Pre-Migration Environment Audit
Scan source tenant and authenticate securely using OAuth 2.0 without passwords.
Import CSV & Auto-Mapping
Bulk map hundreds of source and destination users instantly via CSV upload.
Advanced M365 Workloads
Migrate Mailboxes, In-Place Archives, Teams Chats, OneDrive, and SharePoint Sites.
VIP Account Tagging & Priority Routing
Tag C-Suite or critical department mailboxes to migrate first with dedicated bandwidth.
Concurrent Routing & Automated Delta Syncs
Bypass Microsoft API throttling limits and run background delta passes for zero downtime.
Custom Folder Mapping & Filters
Map custom destination folders and apply specific Date-Range filters for the migration.
Detailed Migration Summary Reports
Export comprehensive CSV audits of all successful and failed items.
Complete Office 365 to Microsoft 365 Tenant Migration
Total number of user mailboxes permitted to be migrated.
Two User Accounts Unlimited Users

Licensing Cost

No hidden Microsoft cross-tenant add-on fees.

FREE

Download Now

$35 / user

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Frequently Asked Questions

Listed Commonly Asked Questions and Answers on FreeViewer Office 365 Tenant Migration

How to migrate data from one Microsoft 365 Tenant to another?

Office 365 Tenant to Tenant Migration Tool

Find the Step by Step Guide to Migrate Office 365 Accounts:

  • Step 1. Install & Run Office 365 Tenant Migration Tool
  • Step 2. Select Workloads & Apply Date Filter.
  • Step 3. Enter Admin ID & Application ID to Validate.
  • Step 4. Create User Mapping & Validate Permissions.
  • Step 5. Click on Start Migration Button.
Yes, this migration tool can easily transfer multiple Office 365 mailboxes within as well as across Microsoft Office 365 domains.
Yes, even after using this Microsoft 365 Migration Tool, the structure of folders and meta property is not disturbed.
Yes, this application is advanced enough to move all the users, shared and admin Office 365 mailboxes without any data loss.
Yes, with this software, users can perform migration between Office 365 domain users mailboxes.
Yes, this Office 365 to Office 365 Migration application equips an option to pause and resume the transfer process whenever necessary.
Yes, the tool provides the facility to perform migration from Office 365 shared mailbox to users mailbox. To do this task you have to create a mapping between shared mailboxes & the user's mailbox in between you want to perform the migration.
Yes, you can perform Office 365 archive folder migration between Office 365 domains. The tool is capable enough to carry out migration between Microsoft mailboxes. The tool will easily migrate emails, contacts, calendars, and documents between mailboxes.
Microsoft 365 formerly known as Office 365, is a cloud-based business productivity suite. It offers various collaborative software solutions such as Word, Excel, PowerPoint, Outlook, and many more. Users can access them online, and it provides services for email, file storage, and communication.
There could be several reasons for migration among Office 365 user accounts or tenants, such as
  • Mergers and Acquisitions
  • Organizational Restructuring
  • Subscription Upgrade
  • Rebranding
In all these scenarios, the administrators have to perform data transfer within the Office 365 accounts.
You can initiate the migration process by creating a checklist and then using a reliable Office 365 to Office 365 migration tool. Software like this helps users perform a safe and secure data transfer ensuring data security and integrity.
Yes, it's possible to move multiple Office 365 mailboxes within a single domain using this Office 365 to Office 365 migration tool. Moreover, you also get the feature to add multiple projects for speedy migration within the complex migration workload.
Yes, the tool maintains the folder hierarchy. Furthermore, it also keeps the integrity of data throughout the entire migration process.
Yes, using the Office 365 to Office 365 migration software, you can easily migrate data from shared mailboxes to user mailboxes. Moreover, you can also migrate the in-place archive mailbox without any hassle.
Yes, you can typically migrate the entire data, including the user's archive folder, shared mailbox, etc. using this software. You can also set up SMTP to get real-time mailbox migration updates.
No, the Office 365 to Office 365 migration tool does not impose any type of limitations or restriction on mailbox size limits. You can migrate any size of mailbox data without any limitations.
With the Office 365 migration tool, the users in both accounts can maintain normal email and data access during migration. The migration tool is designed to minimize disruptions, and it runs in the background.
Yes, most migration tools are capable of migrating calendar and contact data between Office 365 accounts or tenants. Additionally, you can set date filters on both of these mailbox items to migrate them selectively.
You can easily enable these settings in the workload selection screen. Then the software will preserve the permissions and access rights of shared mailboxes and folders during and post-migration process.

What Customers Are Saying

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