Introduction

Office 365 to Office 365 migration is the process of moving emails, contacts, calendars, and other data from one Microsoft 365 account to another. When firms merge or move their IT systems they frequently need this. It helps firms maintain their information in order. It keep working without stopping.

A lot of companies are switching to new tenants in 2026 to improve management, security or scalability. However the process can be tricky if not done properly. This guide breaks down the whole process into easy to understand steps so that anyone can follow along.

Pre-Migration Preparation

Planning ahead is very crucial before commencing the migration. If you do not get ready, mistakes and data loss can happen.

Things to Prepare

1. Admin access to both the source and target Office 365 accounts
2. List of mailboxes to move for users
3. Verifying the domain in the new renter
4. Backup of crucial information
5. Enough licenses in the target tenant

Planning ahead cuts down on threats and saves time during migration.

Steps to manually move from Office 365 to Office 365

Step 1: Check the domain in the target tenant

1. Add your domain to the new Office 365 account first and check to see if it works.
2. Go to the Microsoft 365 Admin Centre
3. Add a domain
4. Follow the procedures to check DNS

This makes sure that the new user can still use the same email address.

Step 2: Create accounts for users

1. Next, make accounts for users in the target tenant.
2. Go to the Users page
3. You can add people manually or by using a CSV file.
4. Give each user a licence

To avoid confusion make sure that usernames match the source tenant.

Step 3: Set Permissions

1. Give the right roles and permissions:
2. Admin roles
3. Mailbox permissions
4. Security settings

This makes sure that data can be easily accessed following migration.

Step 4: Prepare Mailboxes

1. Before moving clean out your mailboxes
2. Get rid of emails you do not want
3. Get rid of spam and copies
4. Put old data in an archive

This speeds up migration and makes things work better.

Step 5: Use Exchange Admin Centre for Migration

1. Start the migration procedure now:
2. Go to the Exchange Admin Centre
3. Pick Migration
4. Choose migration type Cutover or Staged.
5. Add migration batch
6. Enter the source's credentials

The system will start sending emails to the new tenant.

Step 6: Monitor Migration

1. Keep checking the migration progress:
2. Track migration status
3. If mistakes show up fix them.
4. Make sure that all of the mailboxes are moving correctly.

Monitoring helps keep migrations from becoming incomplete.

Step 7: Update DNS Records

1. When the migration is done:
2. Change the MX records to link to the new tenant.
3. Check the flow of emails

This step makes sure that emails get to the new place.

Step 8: Check and Test the Data

1. Check everything after the move
2. Email
3. Contacts
4. Calendars
5. Attachments

Check to see if any data is missing.

Step 9: Close down the old tenant

1. After the migration is successful
2. Get rid of outdated accounts
3. Cancel licenses that are not being used
4. Get rid of or secure the old tenancy

Common Issues with Office 365 Migration

1. The chance of losing data

There are times when emails or files do not move across correctly.

Solution: Always make a backup before you start.

2. Downtime Issues

Email services might stop working for a short time.

Solution: Plan the migration to happen when people are not working.

3. Errors in permissions

After migration users may not be able to get to the data.

Solution: Check permissions again before and after the migration.

4. Big mailboxes

It takes longer to move big mailboxes.

Solution: Get rid of data you don't need ahead of time.

5. Technical Problems

To transfer, you need to know how to accomplish things manually.

Solution: Use professional tools to make migrating easy.

A Smart Tip To Make Office 365 Migration Easier

You can migrate Office 365 data manually, but it can take a long time and be hard. A lot of experts like to use automatic tools like Softaken Office 365 to Office 365 Migration Tool to make things easier. It makes it easy to migrate emails, contacts, calendars, and other data without any trouble. It's simple to utilise the software. It works with every version of Office 365. You can also try out its features for free with a demo version before you buy it.

How to Make Your Migration Go Smoothly

Before you start, always make a full backup.

1. Try out migration with a few accounts first.
2. Make sure your internet connection is reliable.
3. Have your login information available
4. Always keep an eye on the process.
5. After you move the data, check it.

Following these tips can help you save time and prevent making mistakes.

In conclusion

Office 365 to Office 365 migration is a vital step for businesses that are shifting to a new place. You can do it manually but it takes a lot of preparation and technical know how. Users can migrate more quickly and avoid frequent problems by following the step by step guide above.

Using a trusted tool can make the procedure lot easier for individuals who desire a faster and easier way to do it. To have a successful migration in 2026 you need to conduct the right prep work and testing whether you do it manually or by using the software.