Admin Pool usage during Office 365 migration after an NME upgrade is performed.
The permissions required for the pool accounts were changed in NME 4.8.0.18. Therefore, delete the pool accounts from any prior NME installation, and recreate them after this HotFix has been installed.
If the Admin Pool accounts that are re-created are in the same number series, then you may need to purge the O365 recycle bin of the old Admin Pool accounts before creating the new Admin Pool accounts:
Import-Module MsOnline
Connect-MsolService
The following PowerShell command will forcefully remove all users in the Office 365 Recycle Bin without confirmation:
Get-MsolUser -ReturnDeletedUsers | Remove-MsolUser -RemoveFromRecycleBin -force
