WorkflowFail

workflow set-MITPrestageADComputer
{
    Param (
        [String]$CompName,
        [string]$OU,
        $Credential
    )
    
    Write-Output "Prestaging computer $CompName, OU $OU"
    
    $verbosepreference = "Continue"
    #$VesselsDomainCredential = Get-AutomationPSCredential -Name "cred-vesselsdomaincredential"
    #$VesselsDomainController = Get-AutomationVariable -Name 'var-VesselsDomainDC'
    $VesselsDomainController = "trondclouddc.trondcloud.hindenes.com"
    
        Write-Verbose "Prestaging computer $CompName in trondcloud domain, OU $OU"
        inlinescript {
            $CompName = $using:CompName
            $ou = $using:OU
            $verbosepreference = "Continue"
            $ErrorActionPreference = "Stop"
            
            if (!$ou)
            {
                Write-error "I didnt get an ou. Breaking."
            }
            
            if (!$CompName)
            {
                Write-error "I didnt get a computer account name. Breaking."
            }
        
            import-module ActiveDirectory -verbose:$false
            Write-Verbose "Inlinescript: Checking to see if computer $CompName already exists"
            $computers = get-adcomputer -filter *

            $computer = $computers | where {$_.Name -eq $CompName}
            if ($computer)
            {
                Write-verbose "Found computer $($computer.DistinguishedName)"
                $AssumedDn = "CN=$CompName,$ou"
                if ($AssumedDn -ne $computer.DistinguishedName)
                {
                    Write-Error "Computer account $CompName already exists in target domain, but in the wrong OU. Breaking"
                }
                ElseIf ($computer.Enabled -ne $false)
                {
                    Write-error "Computer account $CompName already exists in target domain, but the computer account is not disabled. Disable the computer in AD to indicate that it is ready for prestaging"
                }
                Else
                {
                    Write-verbose "Computer account $CompName already exist and ready for prestaging"
                }

            }
            Else #Computer account not found, creating
            {
                Write-Verbose "Computer $CompName not found, creating"
                Write-verbose "Creating computer $CompName and setting to disabled"
                New-ADComputer -Name $CompName -SamAccountName $CompName -Path $ou -enabled $false
            }

            
        
        } -pscomputername $VesselsDomainController -PSCredential $VesselsDomainCredential

    
    Write-Output "set-MITPrestageADComputer runbook completed."
}

workflow Failedtest
{
    Param ($cred)
    set-MITPrestageADComputer -CompName "test" -OU "CN=Computers,DC=trondcloud,DC=hindenes,DC=com" -Credential $cred
    set-MITPrestageADComputer -CompName "test2" -OU "CN=Computers,DC=trondcloud,DC=hindenes,DC=com" -Credential $cred

}

workflow Suceedtest
{
    Param ($cred)
    set-MITPrestageADComputer -CompName "test" -OU "CN=Computers,DC=trondcloud,DC=hindenes,DC=com" -Credential $cred
    start-sleep -Seconds 120
    set-MITPrestageADComputer -CompName "test2" -OU "CN=Computers,DC=trondcloud,DC=hindenes,DC=com" -Credential $cred

}

$cred = Get-Credential

#This will fail
Failedtest -cred $cred

#This will suceed
Suceedtest -cred $cred

Code to demonstrate the PowerShell workflow bug filed to https://connect.microsoft.com/PowerShell/feedback/details/894721/workflows-using-multiple-inlinescripts-with-the-pscomputername-does-not-get-correct-variables-from-the-workflow-when-using-using-scoping