How to Merge Two Office 365 Accounts Using Outlook (One-Time Transfer)

How to Merge Two Office 365 Accounts Using Outlook (One-Time Transfer)

If you're planning to retire an old Microsoft 365 (Office 365) account and want to move all your content—including emails, contacts, and calendar entries—into a new account, the easiest method is using the Outlook desktop app. Here’s a simple step-by-step guide to help you complete a one-time merge of your data:

1. Add Both Accounts to Outlook

• Open Microsoft Outlook (desktop version).

• Go to File > Account Settings > Account Settings > Email > New.

• Add both Office 365 accounts (the source and the destination).

2. Copy Folders Manually

• Once both accounts are synced and visible in Outlook, expand the folder list for each.

• Drag entire folders or individual items (emails, calendar entries, contacts) from the old account into the corresponding folders of the new account.

3. Wait for Synchronization

• Outlook will upload the copied items from your local Outlook to the new mailbox in the cloud.

• The time it takes depends on your internet speed and the amount of data being moved.

4. Remove the Old Account (Optional)

• Once everything is fully synced and verified, you can safely remove the old account from Outlook.

This method is ideal for a one-time merge and ensures your data stays intact, organized, and accessible in your new Office 365 account.