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How To Import PST to Office 365 Mailbox: A Step-By-Step Guide?

Today I’m going to show you on how to import PST to Office 365 mailbox. Before we begin, make sure you have the necessary permission to access the security and compliance center.

Let’s jump right in.

  • Go to the “Microsoft Purview compliance portal“.
  • In the left pane of the Microsoft Purview compliance Portal, click Data lifecycle management > Import.
  • On the Import tab, click + New import job.
  • Type a name for the PST import job, and then click Next. Use lowercase letters, numbers, hyphens, and underscores. You can’t use uppercase letters or include spaces in the name.
How to import PST to Office 365
  • Select “Upload your data
  • Select “Show network upload SAS URI” and copy to clipboard.
microsoft office 365
  • Leave this window open
  • Start the “Microsoft Azure Storage AzCopy
    Download Microsoft Azure Storage AzCopy using the link mentioned on the screen.
  • Launch “Microsoft Azure Storage AzCopy” and it requires source location, destination and log file location.

Source – The location of a PST file
For example, “D:Techieberry”

import PST to Office 365

Destination – The Here you must enter the SAS URI you’ve copied to your clipboard
/V – Specifies the file name to output logging information
/Y – allows the use of write-only SAS tokens when you upload the PST files to a storage location

How to import PST to Office 365 mailbox
  • Now, you need Microsoft Azure Storage Explorer to continue further.
  • Complete the installation and launch it
  • Right-click at the “Storage accounts
  • Select “Connect to Azure Storage…
How to import PST to Office 365 mailbox
  • Select “Use a shared access signature (SAS) URI
import PST to Office 365 mailbox
  • Here you enter the SAS URI that you’ve copied to your clipboard.
import pst to office 365 mailbox
  • Click “Connect
How to move PST to Office 365
  • Now you should see the PSTs that you have copied:
How to move PST to Office 365
  • Go back to the Import job
  • Check both boxes and click “Next
move PST to Office 365
  • Leave this window open and update the CSV mapping file with Notepad (do not use Excel, as this will add additional characters at the end and the file will become unusable for the task).
How to move PST to Office 365
  • Name – The name of the pst file you want to import
  • Mailbox – Email address of the user that will receive the PST data
  • IsArchive – false: emails will be imported to the primary user mailbox
    true: emails will be imported to the archive user mailbox (please check if this is enabled before you start the migration)
  • TargetRootFolder – Subfolder name where the PST data will be migrated
  • Now, select the mapping file
import PST
  • Validate the file
import PST
  • Select “Save
move PST
  • Select “Close
move PST
  • Wait for analysis to complete.
PST to office 365 mailbox
  • When the Analysis is complete
  • Select “Ready to import to Office 365
PST to office 365 mailbox
  • Select “Import to Office 365
PST to office 365
  • Decide what you want to import
  • Select “No, I want to import everything
PST to office 365 mailbox
  • Select “Import data
PST to office 365
  • Select “Close
PST to office 365
  • Wait until the job has been finished
PST import in progress
  • The job has completed
PST import completed
  • When finished Outlook is showing an additional folder within the archive mailbox.
PST import completed
  • The name depends on the settings you have done within the CSV file!

Congratulations! you have learnt on how to import pst to office 365 mailbox.

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Now I’d like to hear from you:

Which finding from today’s report did you find most interesting? Or maybe you have a question about something that I covered.

Either way, I’d like to hear from you. So go ahead and leave a comment below.

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  1. Vedran Segetalo

    How can we Cancel PST importing job that is stucked in Status = “In progess…” for days ?
    And removing all the import requests that belong to that job – does not help too.

  2. Meenakshi

    Thank you so much for the explanation. Recently, I spent $99 on mails daddy pst to office 365 migration app ( for doing the same. You are really a time-saver and money-saver for many people like me.

  3. JerryBB

    Thank you Techieberry, very clear and helpful! Do you know what happens with the pst files you uploaded? Will they be deleted after some time? Or do you have to cleanup afterwards?

    • techieberry

      Thank you. I’m so glad I could be of assistance. If there are no import PST jobs in progress, then all PST files are automatically deleted 30 days after the most recent import job was created.

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