How To Import PST Files to Office 365 Manually?

If you are searching for a method to import PST files to Office 365, then you are at the right place. In this blog, we will guide you to perform the manual methods for importing PST files into Outlook 365 with ease.

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These days people are switching over to Office 365 and somehow need the old email with them. As users switch, the idea of a new mailbox sounds nice, but in the end, they probably need old mailbox items also. Now, to get your emails, contacts, calendars, and tasks into Office 365. Firstly, you should have to import PST files to Office 365.

On the other hand, Office 365 is a top-rated email client and is used by individual users or organization employees throughout the globe. Additionally, it offers users different built-in options like offline and online mode, managing calendars, journals, notes, contacts, etc.

As per looking benefits, users want to transfer  PST to Office 365. In this blog, we learn the multiple options to do this, each with its use case. For small mailbox files, use the Outlook self, and for large mailbox files, I recommend using the Import tool (Azure AzCopy).

Import PST files to Office 365 Using the Built-in Option

In this section, we learn the easiest option, using Outlook self to transfer the PST file. This method is applicable or worked perfectly if you only need to migrate a single or a couple of mailbox files. Follow the steps carefully:

  • First of all, Open Outlook on your system and Sign In with login credentials.
  • Now, click on the File option.
  • Here, select Open & Export and open the Import/Export section.
  • Select Import from another program or file (default selected) and click Next.

import from another program

  • In another window, select Outlook Data File (.pst) and click on it.
  • After that, tap on Next to continue the further process.
  • Now, choose the file that you want to import.
  • In the next wizard, you can select what you want to import and where.
  • Finally, Click on the Finish button to start importing

Depending on the size of your chosen PST files, it can take some time to import all the emails into Office 365. Moreover, this method is quick and easy but only beneficial for small and a single or couple of mailbox items.

Upload PST files to Office 365 Using Azure AzCopy

If you want to Import PST Files to Office 365, you can either upload them to Azure storage or use the drive shipping service from Microsoft. The network upload is free, but while uploading the files, it may take some time.


Before you begin the transfer, you will have to assign the Mailbox Import Export role to the Global Admins in Exchange Online. Sometimes, it may take up to 24 hours before these changes get completed.


  1. Firstly, open the Exchange Admin Center, using, and opt for the Permissions section.
  2. Now, in the admin roles, open the Organisation Management role.
  3. Then click on the plus to add a role to the server.
  4. After that, select the Mailbox Import Export role and click on the Save button.

It can take up to 24 hours before the change is implemented. But in some cases, if you create a new Import Job, then it takes minimum time. Now, log out, close all Microsoft tabs, and log in again.

To Create a New Import Job

  • For setting the permission, you have to create a new Import Job. Go to and select Information governance and click import.
  • Here, select the Import PST Files option.
  • Then tap on the New Import Job.
  • Select if looking to upload or ship your data. Here, I upload it.

upload data

On the next page, you will find the SAS URL that is required and a download link to the latest version of the Azure AzCopy tool. Now, download and install the Azure AzCopy tool and copy the SAS Url on your clipboard.

Additionally, you have to keep the SAS Url private because it provides access to the Azure storage where all your PST files are uploaded.

After that, leave the screen open or tap Cancel and Continue later on.

Migrate PST files to Office 365 by Azure AzCopy Tool

After completing the installation steps of the Azure AzCopy Tool, open it.
Using this upload tool, you will upload all the PST files into the tool folder. Besides that, there is no possibility to select a single PST file. If you want to check it by using one file, you have to create a specific folder.
Follow the below commands to import PST files to Office 365.

AzCopy copy “/path/to/pstfiles” –recursive=true

Use the –recursive=true switch code to specify the recursive mode., if your PST files are present at the subfolders.
It will recommend using quotes around the source and dest paths, and if not, you will get an error that the syntax is incorrect.

As per the size of the files, it will take time to upload the PST.

Checking the Uploaded PST Files

When you upload the files, you have to check if all the PST files are uploaded to Azure Storage or not. Download the Azure Storage Explorer and install it.

While you open the Storage Explorer, you will need to add an account.

  • Firstly, click on Add an account.
  • Now, select Use a shared access signature (SAS) URI
  • Then pass the SAS URI that we got from the import job.
  • At last, click Next and Connect.

After verifying the PST files, close the Storage Explorer. Additionally, you have to make sure you right-click the ingestion data in the explorer section and press the Detach to disconnect. If not, then you will get an issue the next time you want to open it.

Mapping the PST Files

Here are the steps to map the PST files to the mailbox in Office 365.

In the CSV file, you will find a couple of columns/parameters:
Workload:- To import PST to the mailbox, fill this exchange.
FilePath:- In case you have a root folder of PST, leave this empty. Moreover, if you are using subfolders, then type the name of the subfolder.
Name:- Enter the name of the PST files with their extension.
Mailbox:- Link to the mailbox you want to import.
Archive:- To import the pst file to the online archive folder. Select true or false.
TargetRootFolder:- If you leave this blank, the files will transfer to a new folder named Imported present at the mailbox. Furthermore, if you want to merge the data with the existing folders like inbox and sent items, then use symbol /.

Finally, ignore the other fields, and leave them empty.

Completing the Import Process

Here, you have successfully mapped all the PST files and completed the job of import. Now, go back to and launch the import job.

  • Opt with I’m done uploading my files option, and I have access to the mapping file.
  • Then click Next and select the (CSV file) mapped.
  • After that, tap on the Validate to validate the CSV file.
  • Additionally, press on the Save when the validation completes successfully.

After the analysis is finished we can easily upload pst to office 365.

Tap on the Ready to import to Office 365 to start the migration. On the next screen, we will have to click again on Import PST to Office 365.
The import job itself may take some time, simply click on Import data to begin the import PST files to Office 365.

Use PST to Office 365 Migration Tool to Import PST to Office 365

SysInfo PST Converter is a safe and secure utility to transfer PST files to Office 365. The software is competent enough to export PST files into Office 365 without any data loss. Using this utility, one can also export PST files email into various email clients like Gmail, Office 365, Yahoo, Opera Mail, HostGator, etc. Users can easily import PST to Thunderbird, PDF, EML, OST, CSV, and various other multiple formats.

Steps to move PST files to Office 365

  • Download and launch SysInfo PST to Office 365 Converter as an administrator.

launch software

  • Click on the Single File or Multiple Files/Folder options to browse PST files. Select the PST file after then click Next.

click on single file

  • Check the folders from the tree structure you want to transfer.

check the folder

  • Here, you can also preview mail and their attachments files. Click Next.

preview mail

  • Select Office 365 as a desired option from the drop-down list.

select office 365

  • Sign In with your Office 365 email address and third-party app password.

signin with third party app

  • Check these options, if necessary:
  1. Remove Duplicate Mail: Opt with this to remove similar emails from the selected folders.
  2. Save In Same Folder: It allows you to make the source and destination folder the same of the resultant folder.
  3. Maintain Folder Hierarchy: It enables you to preserve the hierarchy as per previous.
  4. Migrate or Backup Emails Without Attachments Files: To exclude the attachments files from emails.

remove duplicate mail

  • You can also mark these options:
  1. Mail Filter: Check this to separate the emails between a specific date range.
  2. Task Filter: It permits you to filter tasks into two date ranges.
  3. Custom Folder Name: Apply this to enter the output folder name.

set folder name

  • Click on the Convert button to initiate the conversion of PST files into Office 365.

start conversion process

  • Here, you can download the report of the conversion process.

download report

Final Words

I hope this blog helped you to import PST files to Office 365. You can learn the manual methods to export PST files into Office 365. Moreover, if you want to import too many mailboxes, then go through with the expert solution PST Converter Tool. It Import PST to Gmail Account, Office 365, Yahoo Mail, Zoho Mail, Yandex Mail, HostGator Email, GoDaddy Email, etc., This utility is embedded with various advanced features that make the migration process easy and reliable.

About The Author:

I'm a content writer in the field of Email Migration, Data Recovery, Email backup, and File Management. I started this writing career two years back. I think the vast range of information in this industry is the reason I am so fascinated to read about the newer techniques and technology.

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