There are times when we need to migrate our workload from one Microsoft Office 365 to another, or we want to merge different workloads, in case of a merger, rebranding, or an acquisition. This process is known as the tenant to tenant migration

Although it may seem to be a straightforward process at a glance, actually it is not. Doing the Office 365 tenant to tenant migration can be a troublesome process, especially when you don’t have a handy guide.

Thus, we have compiled this complete step-by-step guide, in which we will show you complete steps for the tenant migration on Office 365.

That being said, let’s jump right into the details.

Migrating Tenant to Tenant in Office 365

Since Office 365 does not come with the built-in functionality of tenant migration. Thus you will have to use third-party tools, or a customized script for transferring your domain, email list, and the rest of the data to the other client.

Luckily, there are a variety of different tools available in the market, which offer the quick, and easy transfer of the tenants. So, you do not have to make a tool for your own.

Here are the Steps for the Migration of the Office 365 Tenants:


As Office 365 lacks the functionality of tenant migration, and you would need to have a third-party application, in this article we will be using the Duo Circle Tenant Migration application, which is a paid app for transferring the data from one tenant to the other.

  1. Firstly, you will need to acquire the license of the Duo Circle for this process. It’s a paid application, and you will have to buy it.
  2. Afterward, you will need to ensure that you have adequate space on the target server for the migration data (you need to ensure that all the domain data and email database can be transferred with free space).
  3. Also, keep in mind that, you might need to open admin accounts for both the source and the target tenants. So, the application can access the data and transfer it without any issue.
  4. Executing It

Now, finally, you have to execute the tenant migration process. In this, firstly, you will need to point the MX record to the Duo Circle, which is available in the app interface. Now, all your emails would be queued, and no non-delivery mail would be sent to the consumers.

Now head to the Microsoft office, delete the domain from one account, and then attach it to the other account.

If you are in search of the services we will highly recommend you Tenant Migration Service.

Frequently Asked Questions (FAQs)

Why We Need Office 365 Tenant to Tenant Migration?

Well, we a company makes acquisitions or gets a merger, the tenants of the older company need to be shifted, and it is possible only with the tenant migration process. By default, office 365 does not support it, and you will need to have a third-party application for this process.

Can We Do Office 365 Tenant Migration Without the Tools?

No, Office 365 does not have the functionality for the migration of the tenants from one account to another. So, you will have to use a third-party tool for the tenant to tenant migration in office 365.

What is the Difference Between Phased & Single Event Migration Process?

In the single event migration process, you transfer all your migration data from one tenant to the other using a single event. There will not be any leftovers. While in the case of the phased data migration process, not all of your data gets transferred it is transferred in steps.


In case of merger, acquisition, or rebranding, you need to transfer all of your client data from one domain to another. Sadly, this tenant migration functionality is missing natively in Office 365.

So, you would need to use a third-party application from transferring all your data from one place to another. In this article, we have explained all the steps in detail that you would need to have for transferring your data.

How was your office 365 tenant migration process? Tell us in the comments section below, we would love to hear it from you.

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