Office 365 PST Import Completed 100 % With Errors – Resolved

Published By Aldrich Calvin
Anuraag Singh
Approved By Anuraag Singh
Published On November 7th, 2023
Reading Time 5 Minutes Reading
Category Office 365

PROBLEM: “Imported PST file. Live status says Office 365 PST import completed with errors but when seeing details showing imported 100%“

I am using Azure AzCopy Tool to import a PST file to Office 365 account and then uploaded it. When I am checking the current status showing completed with errors and when checking details no errors are there. I am using the Office 365 Business Premium Plan. I am working on it to get the PST files into Office 365, but it seems like uploading is not working.

The second problem I am facing is that the upload destination has a long URL and I got a key. Yet I don’t have an Azure account, and how to delete the uploaded file from that location, is not accessible using URL.

Solution For Office 365 PST Import Completed With Errors

If showing task complete and unable to find the imported PST file within Office 365 Mailbox account check the following things:

  1. Connect Exchange Online via remote Windows PowerShell, then run the basic commands to see the detailed status of the import request and detailed data about the Azure Azcopy Import request.
    1. Get-MailboxImportRequest
    2. Get-MailboxImportRequestStatistics
  2. Check your browser is updated or try to perform on any other browser.
  3. Go through the steps once more and check if there is any error in Import Steps.
  4. Sometimes it happens if the internet connection was interrupted in between.
  5.  Or Try an alternative solution to Import PST to Office 365 Mailbox i.e. SysTools Office 365 Import PST Tool and Hard Drive Shipping method.

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Must Read: How to Export Office 365 Mailbox to PST via PowerShell and eDiscovery

Fix Office 365 PST Import Errors Using the Most Reliable Tool

To avoid Office 365 PST Import completed with errors or any other Azure AzCopy error users or admins can use this program to easily upload single as well as multiple PST files to Outlook 365 account in a few steps. If the user wants to import multiple PST files to multiple Office 365 user accounts then Impersonation rights must be assigned.

Also, enables the addition of contacts, calendars & tasks to O365. Incremental Import PST helps you to add new data and all data imported earlier is excluded automatically this helps to stay away from duplicating data on your Office 365 account.

Quick Steps to Import PST to Office 365 Mailbox Without Any Errors

Step 1. Download and Run the tool on your Computer / Laptop.

Step 2. Checkbox corresponding to the “Is Office 365 Admin” text. Now enter Office 365 login credential to import.

Step 3. Now click on Add Folder to add multiple PST files within the single folder or Click on add PST file path one by one.

Step 4. All the PST files will be listed and provide the email addresses corresponding to the PST file names, Credentials will be validated at the same time as shown below:

Step 5. Click on Add CSV file in which path of PST file and User email address is mentioned, Check Sample CSV file uploaded within Software for an overview. And Click on the Next button.

Step 6. Apply Categories & Data filter. Also, Use other Option Like Include Folder, Exclude Deleted or Sent Items, Attach Outlook PST option, and Incremental option to make upload tasks more easy and specific. Next Click on the Import button as below:

Step 7. Once done program will start the upload procedure. The user can check to the progress report, Mails Count, contacts count, etc.

Step 8. Option to save the report that will preview the complete report of data imported to Office 365 mailbox.

Step 9. Log in Office 365 account using login credentials, where you can check emails, contacts, calendars, etc. imported easily.

If, want to add PST files to multiple user accounts Use Office 365 admin account, or the user must have application Impersonation rights assigned.

Must Read: How to Import PST to Office 365 Shared Mailbox

Hard Drive Shipping Method is Another Alternative Solution

This is another method to import the Organisation’s large PST file to an MS Office 365 account in case of getting an Office 365 PST import error using the AzCopy Tool. The Drive shipping method helps the user to import multiple PST files / or add PST files in batches to the user account. For this copy of PST files, you want to import to the Hard disk and then physically ship it to Microsoft data centers. Once Microsoft gets you to drive, one of them will move your organization’s PST file to the Microsoft cloud.

Once data is moved to the cloud users can use multiple filters and other options to target what mailbox items they want to add to their Office 365 account. And easily can control the data they need. In this way when the Import job is started PST file data is shifted from storage media to your mailbox account. Drive shipping is used to import large and multiple PST file data of an organization to an Office 365 account.


In the above article, we have come up with the solution to troubleshoot ‘Office 365 PST Import completed with errors’ by checking what are the main causes and fixing them. Also, discussed two alternative solutions i.e. the reliable software solution and the Drive Shipping method to import PST files to Outlook without any error or data loss.