PowerShell Workflow Runbook that Automatically start the virtual machine (on scheduled time) error

Question

Hello,

I am trying to create a PowerShell Workflow runbook that automatically start the virtual machine, but I am getting this error : cannot validate argument on parameter 'TenantId'

I was following this link : https://akril.net/auto-start-and-shutdown-a-vm-in-azure-to-improve-cost-management/

this is the code

this is the error

thanks for your help

Answer 1

Hi @SPX ADMIN ,

I have tried to reproduce the issue but was successfully about to login using Add-AzureRMAccount. Error says that $Conn.TenantID is null or empty so I would recommend to try printing $Conn.TenantID and see if it prints TenantID or not.

workflow StartGC  
{  
$Conn = Get-AutomationConnection -Name AzureRunAsConnection  
Write-Output $Conn.TenantID  
Add-AzureRMAccount -ServicePrincipal -TenantId $Conn.TenantID -ApplicationId $Conn.ApplicationID -CertificateThumbprint $Conn.CertificateThumbprint  
Write-Output "end"  
}  

I was able to see below output:

<<Continued in next comment>>

Answer 2

In case, if it turns out to be null or empty then check what's in $Conn variable as shown below.

workflow StartGC
{
$Conn = Get-AutomationConnection -Name AzureRunAsConnection
Write-Output $Conn
Add-AzureRMAccount ......
...
...
}

I was able to see below output:

Even then if the output is null or empty then that means $Conn variable is null or empty. So, I would recommend to verify in "Modules" tile of your Automation account if status of module "Orchestrator.AssetManagement.Cmdlets" is "Available" with version "1.0" or not. We are validating this because Get-AutomationConnection cmdlet is part of this module.

Answer 3

Had the same problem... in the end it turned out that the automation account needed adjustment in 'Account Settings' / 'Run as accounts'. I added the one below and the error is gone: