Office 365 - Removing assigned License from Shared mailboxes using CSV

I am trying to remove Licenses from Shared Mailboxes using the following script:

$AccountSkuId = "Tenant:STANDARDWOFFPACK_IW_FACULTY"

$Users = Import-Csv "C:\mailbox.csv"

$Users | %{

 Set-MsolUserLicense -UserPrincipalName $_.UserPrincipalName  -RemoveLicenses $AccountSkuId

}

I get the following error:

"Set-MsolUserLicense : Unable to assign this license because it is invalid. Use the Get-MsolAccountSku cmdlet to
retrieve a list of valid licenses."

I absolutely know that the sku is correct.  I also closed and re-ran the PS session connecting to Exchange Online.  Any thoughts?
Anthony K O365Asked:
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Vasil Michev (MVP)Commented:
You will get this error if the account in question simply does not have the SKU assigned. If you are only interested in doing this for shared mailboxes, you can quickly filter them out using:

Get-MsolUser | ? {$_.CloudExchangeRecipientDisplayType -eq 0}

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or do the same for shared mailboxes with particilar license:

 Get-MsolUser | ? {$_.CloudExchangeRecipientDisplayType -eq 0 -and $_.Licenses.AccountSKUId -eq "Tenant:STANDARDWOFFPACK_IW_FACULTY"}

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Then, you can just iterate against the returned objects and remove the license:

 Get-MsolUser | ? {$_.CloudExchangeRecipientDisplayType -eq 0 -and $_.Licenses.AccountSKUId -eq "Tenant:STANDARDWOFFPACK_IW_FACULTY"} | % {  Set-MsolUserLicense -UserPrincipalName $_.UserPrincipalName  -RemoveLicenses $AccountSkuId }

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Anthony K O365Author Commented:
Excellent! Thank you.
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