How to see logs for failure reason when creating VM - azure

Question

I am creating an Azure VM using the below PowerShell script
$username = 'xxxxxxx'
$password = ConvertTo-SecureString 'xxxxxxxx&Cx4cA' -AsPlainText -Force
$WindowsCred = New-Object System.Management.Automation.PSCredential ($username, $password)
New-AzVm `
-ResourceGroupName "1-83eb7c26-playground-sandbox" `
-Name "aznewvm23" `
-Location 'eastus' `
-VirtualNetworkName "mynewazvm23" `
-SubnetName "default" `
-SecurityGroupName "mynewvmNSG23" `
-PublicIpAddressName "mypublicip23" `
-Credential $WindowsCred `
-OpenPorts 80,3389 `
-AsJob
And when I see job status using Get-Job it's getting failed.
Id Name PSJobTypeName State HasMoreData Location Command
-- ---- ------------- ----- ----------- -------- -------
1 Long Running O… AzureLongRunni… Failed True localhost New-AzVM
I want to see the failure reason, How can I get job logs using PowerShell?
PS az204_prep> New-AzVM `
>> -ResourceGroupName 'psdemo-rg' `
>> -Name 'psdemo-win-az4' `
>> -Image 'Win2019Datacenter'`
>> -Credential $WindowsCred `
>> -OpenPorts 3389 `
>> -AsJob
Id Name PSJobTypeName State HasMoreData Location Command
-- ---- ------------- ----- ----------- -------- -------
1 Long Running O… AzureLongRunni… Running True localhost New-AzVM
PS az204_prep> Get-Job
Id Name PSJobTypeName State HasMoreData Location Command
-- ---- ------------- ----- ----------- -------- -------
1 Long Running O… AzureLongRunni… Failed True localhost New-AzVM
PS az204_prep> (Get-Job 1).JobStateInfo.State
Failed
PS az204_prep> (Get-Job 1).JobStateInfo.Reason
PS az204_prep>

Answer 1

To Get the Job Details, You can use Get-Job | Format-List -Property * , to get the Full details of the Job performed in Powershell.
The Operation is failing as you are creating a VM with Default Configuration and default command , So you don't have to use -As Job there. Please remove -As Job and it will successfully get created.
I tested it on my environment using the same command you are using (removing -As Job):
$username = 'xxxxxxx'
$password = ConvertTo-SecureString 'xxxxxxxx&Cx4cA' -AsPlainText -Force
$WindowsCred = New-Object System.Management.Automation.PSCredential ($username, $password)
New-AzVM -ResourceGroupName 'myresourcegroupname' -Name 'psdemo-win-az4' -Image 'Win2019Datacenter' -Credential $WindowsCred -OpenPorts 443
Outputs:
Reference:
New-AzVM (Az.Compute) | Microsoft Docs
Creating with -As Job :
$VMLocalAdminUser = "LocalAdminUser"
$VMLocalAdminSecurePassword = ConvertTo-SecureString "Password" -AsPlainText -Force
$LocationName = "westus"
$ResourceGroupName = "myresourcegroup"
$ComputerName = "mycomputername"
$VMName = "MYVMName"
$VMSize = "Standard_DS3"
$NetworkName = "Myvnet"
$NICName = "MyNIC"
$SubnetName = "MySubnet"
$SubnetAddressPrefix = "10.0.0.0/24"
$VnetAddressPrefix = "10.0.0.0/16"
$SingleSubnet = New-AzVirtualNetworkSubnetConfig -Name $SubnetName -AddressPrefix $SubnetAddressPrefix
$Vnet = New-AzVirtualNetwork -Name $NetworkName -ResourceGroupName $ResourceGroupName -Location $LocationName -AddressPrefix $VnetAddressPrefix -Subnet $SingleSubnet
$NIC = New-AzNetworkInterface -Name $NICName -ResourceGroupName $ResourceGroupName -Location $LocationName -SubnetId $Vnet.Subnets[0].Id
$Credential = New-Object System.Management.Automation.PSCredential ($VMLocalAdminUser, $VMLocalAdminSecurePassword);
$VirtualMachine = New-AzVMConfig -VMName $VMName -VMSize $VMSize
$VirtualMachine = Set-AzVMOperatingSystem -VM $VirtualMachine -Windows -ComputerName $ComputerName -Credential $Credential -ProvisionVMAgent -EnableAutoUpdate
$VirtualMachine = Add-AzVMNetworkInterface -VM $VirtualMachine -Id $NIC.Id
$VirtualMachine = Set-AzVMSourceImage -VM $VirtualMachine -PublisherName 'MicrosoftWindowsServer' -Offer 'WindowsServer' -Skus '2012-R2-Datacenter' -Version latest
New-AzVM -ResourceGroupName $ResourceGroupName -Location $LocationName -VM $VirtualMachine -Verbose -AsJob
I failed it by not satisfying the password Criteria, So, when I check the error message I can see why it failed.
After I change the Password satisfying the criteria the job succeeds.
In Portal: