How to Import PST to Office 365 Online Archive: A Complete Guide

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Migrating your PST files (Personal Storage Tables) to Office 365 Online Archive is an essential step for organizations looking to streamline email management, ensure compliance, and improve data accessibility. While Microsoft provides various methods for importing PST files, using the Import PST to Office 365 Tool offers the most efficient and professional solution. Below, we'll explore both the manual and automated methods for importing your PST files to Office 365 Online Archive.

Why Import PST to Office 365 Online Archive?​

Office 365 Online Archive provides a secure, cloud-based storage solution for email data. Moving legacy PST files to the archive helps reduce storage on local devices and ensures that critical business data is stored safely and remains easily accessible. The Online Archive is ideal for long-term retention, compliance, and legal purposes.

Method 1: Manual Import via Outlook​

One of the simplest ways to import PST files is through Outlook, especially for smaller-scale migrations. Here's how to do it:

1. Open Outlook connected to your Office 365 account.
2. Go to File > Open & Export > Import/Export.
3. Choose Import from another program or file, then select Outlook Data File (.pst).
4. Browse for the PST file on your local machine and choose how to handle duplicates.
5. Select the Office 365 account and import the emails to the desired folder, like the Online Archive.

Although straightforward, this method is only suitable for small volumes and may not be efficient for large enterprises.

Method 2: Using Office 365 Import Service (Professional Method)​

For larger migrations, the Aryson Import PST to Office 365 Tool is highly recommended. This method is more efficient and tailored for bulk migrations. Here’s how you can use this tool:

1. Prepare the PST Files: Consolidate all the PST files into a network share that the import service can access.
2. Use the Microsoft 365 Compliance Center:
   • Navigate to the Microsoft 365 Compliance Center and choose Information Governance > Import.
   • Click + New Import Job, and specify the location of the PST files.
   • Upload the files through the Azure AzCopy tool (provided by Microsoft).
3. Map the PST Files to the correct mailboxes.
4. Start the Import Process: Once everything is set up, begin the import process. The tool will automatically upload the PST content to the Online Archive.

The Import PST to Office 365 Tool handles bulk imports seamlessly, offering automated error handling, progress tracking, and reporting. It’s an ideal solution for IT admins handling large-scale migrations across multiple users.

Method 3: Using PowerShell (For Advanced Users)​

For IT professionals comfortable with scripting, PowerShell offers a way to automate PST imports using the New-MailboxImportRequest command. This method is flexible but requires an understanding of scripting and proper configuration of permissions.

Conclusion​

While the manual method through Outlook is suitable for small-scale migrations, using the Import PST to Office 365 Tool is the professional choice for larger, more complex migrations. It offers automated, secure, and reliable handling of large amounts of email data, ensuring smooth transitions to Office 365 Online Archive.
By using the right tools, you ensure that your organization’s email data is properly archived, accessible, and compliant with regulatory standards.

 

[erickbell]

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