(Free) Microsoft 365 Tenant to Tenant Orchestrator
Control Microsoft Cross-Tenant Migration engines using a Graphical interface

Free Graphical Interface
Intuitive graphical interface to manage every stage of migration
No more Powershell.
Microsoft 365 Tenant to Tenant migration
Microsoft’s native solution for migrating mailboxes and OneDrive between tenants is powerful but notoriously complex: it requires PowerShell expertise, manual configuration, and lacks any graphical interface.
Our Orchestrator solution solves these challenges.
Licensing for Microsoft Migration Tools
You need to buy licenses from Microsoft to run a cross-tenant migration natively. You’ll need as many Cross Tenant User Data Migration add-on licenses as the number of users you want to migrate.
To buy these licenses, you need an Enterprise agreement with Microsoft and at least 500 users.
You need to purchase these licenses directly from Microsoft
Cloudiway Orchestrator
Cloudiway orchestrator is a free service that configures and controls the Cross-Tenant Migration engines.
- It simplifies the process by automating the setup and configuration.
- It automatically provisions the users
- It validates batches of migrations and detect potential issues.
Benefits of Cloudiway orchestrator
User Friendly Interface
- No more powershelll commands
Addresses complexity:
- Automates Setup
- Automates provisioning
Automated
- Orchestrator handles configuration, provisioning, migration, and monitoring, letting you focus on what matters
Time Saving
- Automatically detects and prepares accounts for migration, batch creation in just a few clicks
Reliable
- Prerequisite validation and error reporting before launch for worry-free migrations
Features of Cross tenant Orchestrator
Automated Setup
Configure the source and target tenant automatically without powershell
Automated Provisioning
Automatically provision the users and fill the attributes
Automatic license assignments
Automatically assign the user licenses
Automated Validations
- Automatically validate the migration batches
- Automatically validates pre-requisites
- Detect errors
- Propose remediations
Migrate
- Supports Exchange Online and OneDrive for Business migrations
- Migrate your batches of users
- Validations ensure zero error
Decommission
Automatically decommission configuration after migration
Cross Tenant Mailboxes Migration
Fill Mapping Table
Provision Groups
Run Setup Wizard
Discovery Process
User Provisioning
Assign Licenses
Validation Tasks
Migration
Dashboard
What is covered?
- Users are reprovisioned
- Groups are reprovisioned
- Mailboxes are moved between the 2 tenants.
- Shared mailboxes are recreated and migrated.
- Permissions are entirely preserved (the native Microsoft migration tool breaks some permissions and Cloudiway automatically fixes them)
Microsoft engine is a OneDrive move. Everything is migrated, without loss.
Items migrated:
- Folder Structure
- Documents
- Spreadsheets
- Slideshows
- Permissions
- Metadata
- Revisions

Cross Tenant OneDrive Migration
Fill Mapping Table
Provision Groups
Run Setup Wizard
Discovery Process
User Provisioning
Assign Licenses
Validation Tasks
Migration
Dashboard
Microsoft Cross Tenant Migration
Questions (FAQ)
What are native Microsoft tools for cross-tenant migration?
Microsoft provides built-in tools for migrating Exchange Online mailboxes and OneDrive accounts between Microsoft 365 tenants, supporting scenarios like mergers, acquisitions, and divestitures
Can the source and target tenants utilize the same domain name?
No, domain names must be different.
What types of data are migrated during a cross-tenant Exchange mailbox migration?
Only user-visible content is migrated: emails, contacts, calendar items, tasks, and notes. Items under any type of legal hold are not migrated, and the source mailbox is deleted after migration
Can mailboxes be moved back to the original tenant after migration?
Yes, but the same preparation steps must be repeated in reverse, updating organization relationships and application IDs accordingly
What happens to the source mailbox after migration?
After a successful migration, the source mailbox is deleted and is no longer accessible or discoverable in the original tenant
Does the migration process disrupt user access?
Disruption is minimal. For OneDrive, users experience only a brief read-only period during migration. For mailboxes, access is switched to the target tenant after migration is complete.
Does Cloudiway migrates SendOnBehalf?
Yes, the native Microsoft tools does not migrate them and Cloudiway re adds this permission.
Are Microsoft groups migrated?
Yes, Cloudiway migrates the groups and membership during the migration.
Can I perform a Microsoft 365 tenant migration by myself?
While technically possible, tenant merges are complex processes that involve significant risks. Therefore, it’s often recommended to seek professional help to prevent data loss, minimize downtime, and ensure a smooth transition.
What our customers are saying
We have been working with Microsoft 365 for more than 10 years. We have needed to perform Cloud-to-Cloud migrations on many occasions. Cloudiway has always been the perfect partner providing a very valuable product and support”
Víctor M. Salanova
Dirección en Centria TecnologíaAll was achieved 24h after the start, 1st time in my career after more than 10 years of migration. Cloudiway takes care of everything, Mail/shared mailboxes/Ressources/Teams/OneDrive, etc. You need one hour of consulting services to be sure everything is well set up before starting, but in a migration budget, this hour is nothing regarding the time you earn after in support issues…
Didier Delens
IT Manager at EyeD PharmaThe Cloudiway Expert was fantastic to work with, very knowledgeable and helpful
Conrad Murray
Director and Messaging Architect at Nero BlancoMicrosoft Teams usage continues to grow worldwide, and migration between different teams or from different collaboration systems can be a requirement. With years of experience and a new interface, Cloudiway offers a solution to MSPs and IT Professionals.
Mike Ammerlaan
Director of Microsoft 365 Ecosystem marketing at Microsoft CorpThe choice of the Cloudiway solution was a guarantee of success given the experience acquired over many years and the need to migrate Teams that only Cloudiway was able to offer on the market at the time. Experience has shown that Cloudiway is the ideal partner.