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How to Merge Two Microsoft 365 Tenants or Accounts
Question details
The user needs to know if it is possible to merge two separate Microsoft 365 tenants or accounts into a single tenant and how to execute the consolidation safely.
- Product
- Microsoft 365
- Device & OS
- not provided
- Scenario
- Attempting to consolidate multiple Microsoft 365 subscriptions, users, domains, and service data into one primary tenant.
- Observed behavior
- Microsoft 365 subscriptions and services are locked to specific tenants. Moving them requires a complex migration process with potential hidden dependencies, rather than a simple self-service account merge.
Before taking any action, do not cancel your subscription or delete the unused tenant. Ensure you have Global Administrator access and a complete inventory of your services, domains, licenses, and data.
Contact Microsoft 365 Support for a Guided Migration
Since there is no automated self-service button to merge tenants, contacting backend support is the safest approach to evaluate hidden dependencies before moving any services.
Merging tenants involves migrating users, domains, and data. Because secondary tenants often contain hidden service dependencies that are not immediately visible, backend support is required to determine the safest migration path.
Go to the Microsoft 365 admin center and log in using the Global Administrator credentials for your primary tenant.
Click on the 'Support' tab in the left-hand navigation menu, then select 'Help & support' to open a new service request.
Explain that you need assistance reviewing and merging two specific tenants. Provide the domain details and account information for both tenants so the backend team can review them.
If either subscription was purchased through a third-party reseller, you must also reach out to them directly for assistance with transferring the billing and licenses.
Cancel and Repurchase Licenses for Office-Only Tenants
If the secondary tenant is used exclusively for Microsoft Office desktop applications with no attached cloud data or services, you can manually consolidate by repurchasing licenses in the primary tenant.
Looking for a Hassle-Free Office Solution?
Managing Microsoft 365 tenants, domain setups, and subscription migrations can be complex and time-consuming. If you are looking for a straightforward, lightweight, and free alternative to Microsoft Office, consider WPS Office. It provides powerful productivity tools without the complicated account dependencies.
- 1. Download WPS Office: Visit the official WPS website and download the free installer for your operating system.
- 2. Install the application: Run the setup file and follow the on-screen instructions to install the software in seconds.
- 3. Start creating immediately: Open WPS Office to effortlessly create, edit, and save documents in standard Microsoft formats.
Frequently Asked Questions
Can I move a Microsoft 365 subscription directly between tenants myself?
No, moving subscriptions between tenants is not a simple self-service operation. It requires a carefully planned manual migration of users, data, and domains, and usually involves intervention from Microsoft Support or your license reseller.
What happens if I delete a tenant before migrating my data?
Deleting a tenant will permanently erase all associated user accounts, emails, cloud storage data, configurations, and service dependencies. Always ensure a complete backup and confirm the migration is successful before deleting any tenant.
Do I need a Global Administrator account to request a tenant merge?
Yes, you must have Global Administrator privileges for the tenants involved to authorize backend support requests and execute migration procedures safely.
Can community moderators help me merge my Microsoft 365 accounts?
No, community moderators do not have access to the backend account information necessary for this process. You must open a direct service request with Microsoft 365 support for assistance with tenant migration.
