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Microsoft 365 is one of the most popular productivity suites for businesses around the world. It provides businesses with tools such as email, calendar, document storage & sharing, collaboration, & more. But what happens if your business is in the process of merging or acquiring another business? Or what if you simply need to move all your Microsoft 365 data from one tenant to another? So, we are here to help you out with this via cross-tenant migration. Follow our full guide on Microsoft 365 cross-tenant migration & carry out hassle-free migration.

What is cross-tenant migration?

A cross-tenant migration is the process of moving Microsoft 365 data & applications, such as Exchange Online mailboxes, OneDrive files, SharePoint sites, Teams settings & licenses, from one tenant to another. There are several reasons why an organization may need to migrate data to a new tenant.

For instance, it may be due to acquisition, merger, or divestiture, or a need to consolidate tenants to better manage resources or achieve cost savings. Whatever the reason, cross-tenant migration can be a complex process, but with the below steps, you can easily accomplish it.

Step 1: Plan your migration

Before you begin cross tenant migration office 365, you need to create a data migration strategy & plan for the entire process. This includes deciding on the data that you want to move, which users you want to move it for & which tools you will use. Some critical factors to consider during planning are:

  • Which Microsoft 365 services to move
  • How much data to move
  • Licensing
  • Data backup & retention
  • You should create a comprehensive plan that covers all these aspects of Office 365 cross-tenant migration.

Step 2: Prepare the source tenant

Next, you have to prepare it by cleaning up stale or unnecessary data, resolving conflicts & removing any dependencies. Moreover, you need to check that the data is backed up & that there is no data loss during the migration process.

Step 3: Set up the target tenant

Data migration requires a well-prepared target tenant. You will have to create user accounts for the migrated users, configure appropriate licenses, settings & permissions & ensure that the target environment is compatible with the source tenant.

Step 4: Configure the migration tools

There are many migration tools available that can automate & facilitate the cross tenant migration Office 365 process. You need to choose the appropriate tools that meet your migration requirements, configure them & test them to guarantee that they work correctly.

While Microsoft’s native tools are an option, they can be time-consuming, especially for larger tenants. As such, it may be more advantageous to opt for a third-party migration tool. Not only can these tools speed up the migration process, but they often offer additional features that can be incredibly useful, such as the ability to transfer data from other cloud platforms.

One of the best third-party migration tools available is the Kernel Office 365 Migration tool. This powerful tool has been designed with efficiency, speed & effectiveness in mind. It can handle even the most complex migrations quickly with zero data loss. With this tool, you’ll have access to robust migration features, such as real-time migration monitoring, smart filtering options, mailbox direct mapping, support for multiple platforms, etc.

Step 5: Verify & test the migration

Once the migration is complete, verify that all the data & applications have been migrated successfully & that there is no loss or corruption of data. Moreover, test the migrated applications to check that they are working correctly in the target tenant.

Run the Test-MigrationServerAvailability cmdlet against your target tenant’s Cross-tenant migration endpoint to verify Cross-tenant mailbox migration configuration. Use the following cmdlet to verify from the target tenant:

Test-MigrationServerAvailability -EndPoint “[the name of your migration endpoint]” -TestMailbox “[Primary SMTP of MailUser object in target tenant]”

Best practices for cross-tenant migration

Here are some best practices that you can follow for a successful & efficient cross tenant migration office 365:

  • Plan the migration early: Start the planning process as early as possible to avoid any problems during the migration process.
  • Choose the right migration tool: Select a tool that meets your migration goals & requirements and it supports your data types & applications.
  • Break down your migration: Break down the migration into smaller, logical groups to make it easier to manage & troubleshoot.
  • Test your migration in a pilot environment: Test the migration in a pilot environment before performing the actual migration.
  • Communicate clearly with stakeholders: Make sure everyone understands the migration process, timelines & expectations.
  • Monitor the migration closely: Monitor the migration process closely so that it is proceeding as planned, & take corrective action if necessary.

Last thoughts

Microsoft 365 Cross-Tenant Migration is an efficient way to move organizational data without compromising its security. This process involves a few steps like planning the migration, configuring the source & target systems, setting up the target mailboxes, choosing the right migration tools for your needs, etc. We can’t emphasize enough the importance of using professional software to accomplish these tasks effortlessly.

Among many other reliable third-party options available in the market, Kernel Office 365 Migration tool stands out as a top favorite for all your cross tenant migration Office 365 requirements. If you need help in managing your Office 365 migrations projects from start to finish, then make sure to seek our expertise & experience today.

Q. What is the maximum migration limit for Office 365?

A. You can migrate up to 2,000 mailboxes via a cutover migration. However, it’s recommended that you keep the number of mailboxes closer to 150 for optimal results. Keep this limit in mind as you plan your migration to Office 365.

Q. What is cross-tenant in Azure?

A. Cross-tenant access settings in Azure are an important feature for managing B2B collaboration with other Azure AD organizations. These settings allow for secure B2B direct connections & collaboration with non-Azure AD identities. If you want to collaborate externally, you must use external collaboration settings.

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