Attribute value not acceptable in Powershell Automate script

Question

I am currently in the process of setting up an AD user creation script with questions.

After answering all the questions here is the error that appears.

New-ADUser: An attribute value was not within the acceptable range At character E: \ SCRIPT \ SCRIPT_CREATE_USER_QUESTION.ps1: 17: 5

New-ADUser -SamAccountName $ Username `

The original code is : `Import-Module ActiveDirectory

$Prenom      = Read-Host "Merci de rentrer le prénom de l'utilisateur à créer "
$Nom         = Read-Host "Merci de rentrer le nom de l'utilisateur à créer "
$Password    = Read-Host "Merci de rentrer le mot de passe en respectant la politique actuel "
$Description = Read-Host "Merci de rentrer l'intitulé du poste "


$FirstLetter            = $Prenom.Substring(0,1).ToLower()
$TwoLetter              = "$Prenom.Substring(0,2)"
$FirstLetterName        = "$Nom.Substring(0,1)"
$NomMinuscule           =  $Nom.ToLower() 
$Username               = "$FirstLetter$NomMinuscule"
$Init                   = "$TwoLetter$FirstLetterName.ToUpper()"
$Chemin                 = "OU=LBC-USERS,DC=lbcdom,DC=local"

New-ADUser -SamAccountName $Username `
                -UserPrincipalName "[email protected]" `
                -Name "$Prenom $Nom" `
                -GivenName $Prenom `
                -Surname $Nom `
                -Enabled $True `
                -DisplayName "$Nom, $Prenom" `
                -AccountPassword (convertto-securestring $Password -AsPlainText -Force) `
                -Description $Description `
                -Initials $Init `
                -EmailAddress "[email protected]" `
                -ProfilePath "\\SRV-WINLBC\Profils_itinerants\$Username" `
                -Path $Chemin `
                -ChangePasswordAtLogon $false `
                -PasswordNeverExpires $true `
                -CannotChangePassword $true

          Write-Warning "Bravo! L'utilisateur : $Username est cree."`

The initials attribute must be no longer than 6 characters. Your $Init variable likely has the literal value FirstName.Substring(0,2)FullName.Substring(0,1).ToUpper() because of the way you've constructed your strings — Mathias R. Jessen
– Mathias R. Jessen, Commented Oct 1, 2021 at 14:25
I tried without the initials value and i have the same error message ... — Yarka
– Yarka, Commented Oct 1, 2021 at 14:29
Yeah, now it probably complains because the username contains invalid characters. Please see the answer I posted below — Mathias R. Jessen
– Mathias R. Jessen, Commented Oct 1, 2021 at 14:31

mklement0 · Accepted Answer · 2021-10-01 15:50:57Z

1

I suspect the range violation is because you're passing a string that's way too long for the -Initials argument - the initials attribute must be no longer than 6 characters, but yours is much longer than you think. In addition, the $Username value you construct is not a valid username.

When you do:

$Name = 'Yarka'
$TwoFirstLetters = "$Name.Substring(0,2)"

the resulting literal value of $TwoFirstLetters will be Yarka.Substring(0,2) - PowerShell will expand the $Name variable and ignore the rest.

To avoid this, stop surrounding expressions with ":

$FirstLetter            = $Prenom.Substring(0,1).ToLower()
$TwoLetter              = $Prenom.Substring(0,2)
$FirstLetterName        = $Nom.Substring(0,1)
$NomMinuscule           = $Nom.ToLower() 
$Username               = "$FirstLetter$NomMinuscule"
$Init                   = "$TwoLetter$FirstLetterName".ToUpper()

If you must embed a method call in a string literal, make sure you escape the expression with the subexpression operator $():

$TwoLetter = "$($Prenom.Substring(0,2))" # this will work too

edited Oct 1, 2021 at 15:50

mklement0

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answered Oct 1, 2021 at 14:30

Mathias R. Jessen

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4 Comments

Yarka Over a year ago

If i delete all the ", i have some unexpected token ... (i'm sorry i'm a newbie)

Mathias R. Jessen Over a year ago

@Yarka What if you remove the existing 6 lines (starting from $FirstLetter = ...) and replace them with a copy-paste of the 6 lines in my answer?

Yarka Over a year ago

You are the best bro thx

Mathias R. Jessen Over a year ago

@Yarka You're welcome! If my answer solves your problem, please consider marking it "accepted" by clicking the checkmark on the left :)

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