Microsoft Network upload method - A free way to import PST file to Office 365 account with all mail, contact, calendar, task etc. On other word, this method helps organizations to move their Outlook data to Office 365 cloud environment. This is most popular and effective to migrate your data in Microsoft 365.
Network Upload Method vs Third-party tool
This comparison may look admirable for a third-party solution — and it is. We know that Microsoft is a broad company that offers many advanced technologies to manage user mailboxes and data. Because Microsoft’s ecosystem is deeply integrated with programming, some features can be a bit technical to control.
However, when we use a professional solution like a PST to Office 365 Migrator, the process becomes much easier. There is no need to perform manual steps repeatedly, no PowerShell commands to deal with, and no issues related to file size limitations.
How to transfer PST to Office 365 using Network upload Method?
In this video, I provide a detailed, step-by-step tutorial on how to import PST files into Office 365 using the Network Upload method through the Microsoft 365 Compliance Center. This method is especially useful for IT administrators and organizations needing to migrate large volumes of mailbox data to Exchange Online efficiently and securely.
The process includes preparing your PST files, using the AzCopy tool to upload them to Azure Storage, generating a SAS URL, and creating a CSV mapping file to link PST files with user mailboxes. I also cover how to use the Import wizard in the Compliance Center to complete the migration.
This video is aimed at IT professionals, system administrators, or anyone managing Microsoft 365 environments. Whether you’re planning a company-wide migration or just looking to move a few archived mailboxes to the cloud, this method is reliable and scalable.
If you encounter any issues during the process—upload errors, mapping problems, or mailbox access issues—feel free to drop your questions in the comments. I'm happy to help troubleshoot or provide clarifications.
How to import PST file to Office 365 using Professional application?
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