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The Essential Step-By-Step Guide For Office 365 Tenant To Tenant Migrations

Migrating a tenant from one Office 365 Environment to another is a complicated task. It requires extensive planning, coordination, and execution. If not done properly, it can lead to significant disruption and loss of data. For organizations looking to move their data from one Office 365 tenant to another, this process can be daunting. duocircle.com contains useful information about migrating Office 365 to Office 365.

Tenant In Microsoft 365:

A tenant on Microsoft 365 is a unique location for storing service data. It is a specified location, such as North America or Europe, for example, for state information.  An administrator for a business merger can use the available features found in the subscriber. For business merger scenarios, mailboxes need to be moved to another tenant. The process is not simply a transfer; you need to do some preparation, satisfy prerequisites, and have licenses.

Tenant To Tenant Migration In Microsoft 365:

Possibly, tenant-to-tenant migrations will provide assorted challenges depending on your migration scenario. Whatever migration scenario you select, tenant migration is a common procedure during business acquisitions, mergers, and divestitures.

Migration of Microsoft 365 tenants to tenants third-party tools is done before tenants can migrate to the cloud. Prior to migration, there is a checklist for Office 365 Pre & Post Migration that tenants should remember.

Must Do Pre-Migration Steps:

How To Get Domain Ready:

Based on your current migration pattern, you may have various considerations before you sign up with a host. The most common scenarios are:

Rebranding involves reversing a previous brand.

The cloud tenant is located somewhere.

You Will Prepare The Domain Based On Your Needs:

Make sure you have all the required licenses for Microsoft 365.

Both source and target must be set up as Admin accounts so that the migration process can run smoothly.

Build user mailboxes, room resource mailboxes, and distribution folders as needed in the target.

If made necessary, consolidate the information from Active Directory Distribution System (AD DS) using a tool like AD DS and make sure a minute is accurate between two domains manually or using synchronization.

Give your users more knowledge about the use of Microsoft 365 following migration.

Check Whether The The Domain Name Is Correct:

Verify the designated tenant platform in Microsoft 365. Go to the Microsoft 365 admin center and add a domain as a source, then create TXT records.

The domain should be assigned to just one user. Otherwise, the verification won't work. For this step, it takes approximately one day.

Emigration Can Be Scheduled?

Create a CSV file for mapping out user mailboxes that are to be transferred.

The MX value of the primary email for your domain has the lowest TTL value.

In the Microsoft 365 admin center, turn off directory sync for a tenant source from the tenant AD DS to prevent it from syncing any changes in AC Microsoft 365. It may take up to 24 hours to complete the process.

The Migration Stage:

Prevent Inbound Mail Flow From Coming To Your Mailbox:

Prevent inbound mail flow to your source tenant by changing the MX record (of their primary email address) to an inaccessible value or by making use of a third-party service. As you have noted the lowest value in TTL (of the MX record) of the inbound mail domain in your preparation step, you can easily plan when the step will be carried out.

Prepare The Source Tenant:

The primary mail domain should be removed from the mailbox in the source tenant before moving the mailbox to a different tenant.

Reset the default email address to the default address associated with Microsoft 365.

Remove all the Lync licenses from the source tenant using the Lync Admin Portal.

Reset the email address of distribution lists, rooms, and resources to their default value. Remove the secondary email address from tenants' objects.

Building A Target Domain Requires Preparation:

Schedule an automatic CNAME configuration.

You have to configure a new domain for AD FS in the target tenant for AD FS.

Create new accounts for users in the domain, and assign them to licenses.

When mailboxes are active for the user, change the mail routing and the postmaster MX record to the new address in Office 365.

In summary, Office 365 tenant to tenant migrations can be a complicated process, but with the right guidance and tools, they can be efficient and successful. By following the step-by-step guide provided, you can ensure that your tenant to tenant migration is completed safely and