Custom Attributes in AD

I have created a custom attribute in AD, it is visible in the user properties but when running powershell to create a new user the custom attribute is not usable.

The create user script is attached, the custom attribute name is libraryCardNumber. The error I get is - 
New-ADUser : A parameter cannot be found that matches parameter name 'libraryCardNumber'.

Searching other forums I have found that maybe a custom attribute might not be able to be used as it isn't a default AD attribute.

Any help would be appreciated.

param (

	[Parameter(ValueFromPipelineByPropertyname)]

	[ValidateNotNullOrEmpty()]

	[string]$FirstName = 'attribute',



	[Parameter(ValueFromPipelineByPropertyname)]

	[ValidateNotNullOrEmpty()]

	[string]$LastName = 'edit15',



        [Parameter(ValueFromPipelineByPropertyname)]

        [ValidateNotNullOrEmpty()]

        [string]$libraryCardNumber = '123456',



	[Parameter(ValueFromPipelineByPropertyname)]

	[ValidateNotNullOrEmpty()]

	[string]$Email = 'fbcl@coolin.co.uk',


		
	[Parameter(ValueFromPipelineByPropertyname)]

	[ValidateNotNullOrEmpty()]

	[string]$MobilePhone = '',


		
	[Parameter()]

	[ValidateNotNullOrEmpty()]

	[string]$Department = 'Public Users',


	
	[Parameter(ValueFromPipelineByPropertyname)]

	[ValidateNotNullOrEmpty()]

	[string]$PostalCode = 'n10 1aq',

#-----------------------------------------

	[Parameter(ValueFromPipelineByPropertyname)]

	[ValidateNotNullOrEmpty()]

	[string]$DateofBirth = 'Adult',

#-----------------------------------------

	[Parameter(ValueFromPipelineByPropertyname)]

	[ValidateNotNullOrEmpty()]

	[string]$Location = 'OU=fbcl-users',


	
	[Parameter()]

	[ValidateNotNullOrEmpty()]

	[string]$DefaultGroup = 'PublicUsers',


	
	[Parameter(ValueFromPipelineByPropertyname)]

	[ValidateNotNullOrEmpty()]

	[string]$Password = 'Pa$$w0rd',


	
	[Parameter()]

	[ValidateScript({ Test-Path -Path $_ })]

	[string]$BaseHomeFolderPath = ''

)

$dot = '.'



## Find the distinguished name of the domain the current computer is a part of.

$DomainDn = (Get-AdDomain).DistinguishedName

## Define the 'standard' username (first initial and last name)

##$Username = "$($FirstName.SubString(0, 1))$LastName"

$Username = "$($FirstName)$dot$LastName"



#region Check if an existing user already has the first initial/last name username taken

Write-Verbose -Message "Checking if [$($Username)] is available"

if (Get-ADUser -Filter "Name -eq '$Username'")

{

	Write-Warning -Message "The username [$($Username)] is not available. Checking alternate..."

	## If so, check to see if the first initial/middle initial/last name is taken.

	$Username = "$($FirstName.SubString(0, 1))$MiddleInitialLastName"

	if (Get-ADUser -Filter "Name -eq '$Username'")

	{

		throw "No acceptable username schema could be created"

	}

	else

	{

		Write-Verbose -Message "The alternate username [$($Username)] is available."

	}

}

else

{

	Write-Verbose -Message "The username [$($Username)] is available"

}

#endregion



#region Ensure the OU the user's going into exists

$ouDN = "$Location,$DomainDn"

if (-not (Get-ADOrganizationalUnit -Filter "DistinguishedName -eq '$ouDN'"))

{

	throw "The user OU [$($ouDN)] does not exist. Can't add a user there"

}

#endregion



#region Ensure the group the user's going into exists

if (-not (Get-ADGroup -Filter "Name -eq '$DefaultGroup'"))

{

	throw "The group [$($DefaultGroup)] does not exist. Can't add the user into this group."

}

#if (-not (Get-ADGroup -Filter "Name -eq '$Department'"))

#{

	#throw "The group [$($Department)] does not exist. Can't add the user to this group."

#}

#endregion



#region Ensure the home folder to create doesn't already exist

$homeFolderPath = "$BaseHomeFolderPath$UserName"

if (Test-Path -Path $homeFolderPath)

{

	throw "The home folder path [$homeFolderPath] already exists."

}

#endregion



#region Create the new user

$NewUserParams = @{

	'UserPrincipalName' = $Username

	'Name' = $Username

	'GivenName' = $FirstName

	'Surname' = $LastName

	'libraryCardNumber' = $libraryCardNumber

	'EmailAddress' = $Email

    'MobilePhone' = $Mobilephone

    'Department' = $DefaultGroup

    'Description' = $DateofBirth

	'SamAccountName' = $Username

	'AccountPassword' = (ConvertTo-SecureString $Password -AsPlainText -Force)

	'Enabled' = $true

	'postalCode' = $PostalCode

	'Path' = "$Location,$DomainDn"

	'ChangePasswordAtLogon' = $false

}

Write-Verbose -Message "Creating the new user account [$($Username)] in OU [$($ouDN)]"

New-AdUser @NewUserParams

#endregion



#region Add user to groups

Write-Verbose -Message "Adding the user account [$($Username)] to the group [$($DefaultGroup)]"

Add-ADGroupMember -Members $Username -Identity $DefaultGroup

#Write-Verbose -Message "Adding the user account [$($Username)] to the group [$($Department)]"

#Add-ADGroupMember -Members $Username -Identity $Department

#endregion



#region Add user to roaming profile list

#Set-ADUser -Identity $Username -ProfilePath \FBCL2019-DC01\profiles\%username%

Set-ADUser -Identity $Username -ProfilePath \\FBCL2019-DC01\profiles\%username%

#endregion



#region Set protect from accidental deletion on all user objects : NOT WORKING AS OF 28 JULY 2019

#Set-ADObject -Identity $Username -ProtectedFromAccidentalDeletion:$true

#endregion



if ($Host.Name -eq "ConsoleHost")

{

write-host "-------------------------------------------------------------------------"

write-host "The new user was added successfully."

Write-Host "Please press any key to continue…"

#$Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyUp") > $null

}

#region Create the home folder

#Write-Verbose -message "Creating the home folder [$homeFolderPath]..."

#$null = mkdir $homeFolderPath

#endregion
		
		

Colin Thomson