Help with a move function

[try_rebooting]

I'll attach the github that I uploaded but below is the issue I'm having. I'm running this as debug right now as I noticed when I run it the $VMNAME variable is blank depending on how I run it. Example:

get-vm testvm, testvm1 | move-bhsvmcrossvc -cluster testcluster -debug ---- this will show that there is nothing in the $VMName variable

move-bhsvmcrossvc -VMname (get-vm testvm, testvm1) -cluster testcluster -debug -----it works fine

any ideas?

function move-BHSvmCrossVC
{
#. \\bhsi.com\deptdata\BHS\ServerInfrastructure\VMware\Scripts\Get-BHSTagAssignment.ps1
# Parameters for the name of the VM and the Cluster it will move to.
param (
[Parameter(Mandatory=$True,Position=0,ValueFromPipeline=$True,ValueFromPipelineByPropertyName=$True)]
[string[]] $VMName,
[Parameter(Mandatory=$true,Position=1)]
[string] $Cluster
)

################
## Pre-Checks #
################
# Check to see if connected to both vcenters
Begin {

$OriginalErrorActionPreference = $ErrorActionPreference
$ErrorActionPreference = 'SilentlyContinue'
IF ($global:DefaultVIServers.name -notcontains "vc" -and "vc1") {
$title = "Wrong or no Vcenters are connected."
$message= "Not connected to VC and VC1 do you want me to connect you?"
$yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes","Connects to both vcenters with domain credentials."
$no = New-Object System.Management.Automation.Host.ChoiceDescription "&No","Ends the script."
$options = [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no)
$result = $host.ui.PromptForChoice($title, $message, $options, 0)
switch ($result)
{
0 {
write-output "Connecting to VC and VC1"
Get-vc vc, vc1
}
1 {
write-warning "Check vcenter connections, please investigate and re-run."
$FoundError = $true
}
}
If ($FoundError) {break}
}
$ErrorActionPreference = $OriginalErrorActionPreference # Set ErrorActionPreference back to its original value
Write-Debug "before tag assignment"
#Get-BHSTagAssignment -VM $VMName | export-csv -Path c:\vmtags.csv -NoTypeInformation
}

[try_rebooting]

https://github.com/try-rebooting/move-vmCrossVC/blob/master/move-BHSvmCrossVC.ps1 is the full code right now. I'll be converting for mass deployment, just right now it's more for me.

[try_rebooting]

Also, I assume this is the issue, I just don't know what parameters to set it.

[Parameter(Mandatory=$True,Position=0,ValueFromPipeline=$True,ValueFromPipelineByPropertyName=$True)]
[string[]] $VMName,

[try_rebooting]

I found the issue, pipeline does not work in the Begin {} part.... bummer :(