A Guide for Office 365 to Office 365 Migrations

There are many reasons why an organisation might need to migrate from one Office 365 (O365) environment to another. A merger, acquisition, or divestment could all lead to the need to simplify or combine environments, prompting the need for an organised and swift migration.

Unfortunately, this kind of migration still isn’t particularly common, meaning that there isn’t a lot of documentation or guidance available for them. This can lead to confusion around where to begin and how to plan an effective migration process. Thankfully, it isn’t as complex as it might seem at first glance.

In this guide, we are going to discuss a variety of different factors you need to consider when migrating from one O365 environment to another, including critical parts of the process, reasons to migrate, any complications you might face, and how you can make the process easier.

Why would I need to migrate from one O365 environment to another?

Since many businesses use O365, it’s common for the need for migration to arise when organisations merge or are acquired. As part of this process, business processes, data, storage, and other areas of functionality have to merge to ensure that the new entity is operating collaboratively and information is easy to access for every department and team member.

A simple example of this would be Company A, which uses O365, merges with Company B, which also uses O365. During the merger, it’s decided that they need to integrate their IT systems to ensure a good foundation going forward. In this example, an O365 migration is required.

Whilst you might think that this process would be relatively simple, as both environments are based on the same technology, it is more complex than it seems. Migrating from O365 to O365 is a complete migration project, in the same way that migration from an on-premises system to O365 would be. Additionally, the more O365 services that your organisation utilises, the more complex the time-consuming the migration becomes.

What are the potential complications of an O365 to O365 migration?

Several complications can arise when migrating from one O365 to another. Firstly, the migrating domain(s) can only exist in one tenancy at a time. This creates a lot of issues with the migration of mailboxes, users, and other objects, meaning all objects will have to be removed or renamed to enable migration. The domain can then be removed from one tenancy and added to the other before the objects can be recreated.

Some tools can be used to make this migration process easier, but these add extra cost and complication for your team. It also means that your team has to spend valuable time training to use these new tools, taking them away from other projects and tasks.

Another issue organisations will face during the migration is servicing mailboxes. For most businesses, losing access to emails for some time is unacceptable and can result in operational disruptions. To mitigate this, you can route the email via another tool that bypasses O365, but this will still cause mail to back up and only be delivered once the migration is complete. The simplest way to solve this problem is to complete the migration out of office hours, but this can still cause disruption for employees that require email access at all times of the day.

Are there any limitations to the content I can migrate?

Domains, mailboxes, and users can be migrated with relative ease, but what about other aspects of O365? SharePoint and OneDrive content can be migrated quite easily as well, allowing you to retain all of the data and files from both environments.

Unfortunately, it is very difficult to migrate specific Teams set-ups. This means that you may have to recreate one tenancy’s Teams environment to ensure your team members return to a set-up that they recognise.

Content migration is so difficult with O365 to O365 due to everything having to go live at once. This is so that users can access everything they need in the newly migrated tenancy without any disruptions to the services that they need to complete their jobs.

How can I make an O365 to O365 migration process easier for my organisation?

The easiest way to reduce the stress of an O365 to O365 migration is to utilise a Microsoft expert. At Wizard Cyber, we offer a complete O365 migration service that is guaranteed to maintain the stability and content of both O365 environments.

As a Gold Certified Microsoft Partner, we have access to exclusive documentation and Microsoft support that enables us to offer a swift migration service that doesn’t disrupt your operations and maintains the integrity of your O365 environments.

Get in touch with us today to find out more about our Office 365 migration services. Our Microsoft-certified migration experts will be happy to talk you through our services and answer any questions you might have.

If you would like to chat about your Businesses needs, get in touch with our IT experts.

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