Identify and fix validation or other errors with a user in Office 365 | Hybrid Identity

When dealing with user sync issues sometimes you encounter with a user that has a directory sync error evident in the MSOLUser properties. 
How do you extract actual error details to understand what you may need to do to fix it? 

You can run this cmdlets:

$user = "username@domain.com"

Get-MsolUser -UserPrincipalName $user | Select-Object DisplayName,UserPrincipalName,ObjectId,@{Name="Error";Expression={($_.errors[0].ErrorDetail.objecterrors.errorrecord.ErrorDescription)}} | FL

If there are any errors with the user, you will likely get information about it this way.