
Explanation/Reference:
Explanation:
Box 1:
Prerequisite: You have to be assigned the Mailbox Import Export role to import PST files to Office 365 mailboxes.
Box 2:
Step 1: Copy the SAS URL and install Azure AzCopy
Box 3:
Step 2: Upload your PST files to Office 365
Open a Command Prompt on your local computer.

Go to the directory where you installed the AzCopy.exe tool in Step 1. If you installed the tool in the

default location, go to %ProgramFiles(x86)%\Microsoft SDKs\Azure\AzCopy.
Run the following command to upload the PST files to Office 365.AzCopy.exe /Source:<Location of

PST files> /Dest:<SAS URL> /V:<Log file location>
Box 4:
Step 3: Create the PST Import mapping file
After the PST files have been uploaded to the Azure storage location for your Office 365 organization, the next step is to create a comma separated value (CSV) file that specifies which user mailboxes the PST files will be imported to.
You will submit this CSV file in the next step when you create a PST Import job.
1. Download a copy of the PST Import mapping file.
2. Open or save the CSV file to your local computer. The following example shows a completed PST Import mapping file (opened in NotePad). It's much easier to use Microsoft Excel to edit the CSV file.
Example file:
Workload,FilePath,Name,Mailbox,IsArchive,TargetRootFolder,SPFileContainer,SPManifestContainer,SPSi teUrl Exchange,,annb.pst,
[email protected],FALSE,/Inbox,,, Exchange,,annb_archive.pst,
[email protected],TRUE,/Inbox,,, Etc.
References: https://support.office.com/en-us/article/Use-network-upload-to-import-PST-files-to-Office-365-
103f940c-0468-4e1a-b527-cc8ad13a5ea6