function Update-PlatformElementInventory {
<#
.SYNOPSIS
    Adds or Removes the Element name/versions in BoRG to reflect changes.
#>
    [CmdletBinding()]
    Param (
        [Parameter(Mandatory = $false)]
        [AllowNull()]
        [object[]]$ElementsToAdd,

        [Parameter(Mandatory = $false)]
        [AllowNull()]
        [object[]]$ElementsToRemove,

        [Parameter(Mandatory = $true)]
        [string]$EnvironmentTypeName,

        [Parameter(Mandatory = $true)]
        [string]$PlatformVersionName,

        [Parameter(Mandatory = $true)]
        [string]$ElementTierName,

        [Parameter(Mandatory = $true)]
        [string]$BorgUri,

        [Parameter(Mandatory = $true)]
        [string]$ApiKey
    )

    #Remove from BoRG
    $deletePlatformElementInventory = New-Object System.Collections.ArrayList

    foreach ($element in $ElementsToRemove) {
        $delete = New-PlatformElementDetailPSObject `
            -EnvironmentTypeName $EnvironmentTypeName `
            -ElementName $element.Name

        $deletePlatformElementInventory.Add($delete) | Out-Null
    }

    if ($deletePlatformElementInventory.Count -gt 0) {
        Write-Host "Deleting [$($deletePlatformElementInventory.Count)] PlatformElementDetail items from BoRG"
        (Remove-PlatformElementDetails -PlatformElementDetailArray $deletePlatformElementInventory.ToArray() -BorgUri $BorgUri -ApiKey $ApiKey) | Out-Null
    } else {
        Write-Host "No PlatformElementDetail items deleted in BoRG"
    }

    #Add/Update BoRG
    $addPlatformElementInventory = New-Object System.Collections.ArrayList

    foreach ($element in $ElementsToAdd) {
        $detail = New-PlatformElementDetailPSObject `
            -EnvironmentTypeName $EnvironmentTypeName `
            -PlatformVersionName $PlatformVersionName `
            -ElementTierName $ElementTierName `
            -ElementName $element.Name `
            -ElementVersionName $element.Version

        $addPlatformElementInventory.Add($detail) | Out-Null
    }

    if ($addPlatformElementInventory.Count -gt 0) {
        Write-Host "Adding/Updating [$($addPlatformElementInventory.Count)] PlatformElementDetail items in BoRG"
        (New-PlatformElementDetails -PlatformElementDetailArray $addPlatformElementInventory.ToArray() -BorgUri $BorgUri -ApiKey $ApiKey) | Out-Null
    } else {
        Write-Host "No PlatformElementDetail items added to BoRG"
    }


}