I went to upload the PST files on a tenant to use the Office 365 Import service by uploading the PST files using the AzCopy.exe. After I was done, I started the import and after 60 minutes I get a failed error. I made some research and then restarted the import, but now I noticed a message saying “Please add Mailbox Import Export role for use running import and check back in 60 minutes
“.
To do this,
– Login in Office 365 portal
– Click on Exchange
– Click on Permissions
– Click on Admin Roles
– Add a new role with Mailbox Import Export Role
– Add the user you are using to import as part of the group
Screenshot below

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When uploading files or PST files to Office 365 using AzCopy.exe, during the upload using Microsoft’s PST Import service you might have the frustrating error saying “The client could not finish the operation within specified timeout
“. On the command prompt it will be seen as stuck on saying 0 files uploaded with a transfer speed of 0 KB/s. I literally spent hours trying to find out why my PST files do not upload to Office 365.
This can be fixed by lowering the concurrent operations with the import services. After looking at the option which is /NC
option to either 2 or 1 depending on the internet connection upload speed. To be safe, in my case I have setup the NC as 1.
Here’s an example of how the command prompt will look like.
AzCopy.exe /source:\\My-Server\PST /dest:https://12345ab67cd89e0fg123h45.blob.core.windows.net/ingestiondata/Company/PST /destkey:jhdfasdfnasdnflasjkdfnjklsdanflasdfn/nfasdjkfnasdjklfnsjkladnfasjkldfnsdjklf== /S /V:d:\PST_Upload\upload.log /NC:1
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