title: Provisioning state blank when creating Backend Address Pool
body: <p>I am running the following commands to try and create a new Backend Address Pool in Azure's Application Gateway service.</p>
  
  <pre><code>$NewBackendPool = New-AzureRmApplicationGatewayBackendAddressPool -Name "MHA-DEVOPS-TEST-2" -BackendFqdns "test.com"
  Write-Host "Provisioning state: $($NewBackendPool.ProvisioningState)" -ForegroundColor Magenta
  $NewBackendPool
  </code></pre>
  
  <p>The output I get is as follows:</p>
  
  <p><a href="https://i.stack.imgur.com/7M66r.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7M66r.png" alt="Output"></a></p>
  
  <p>I receive no error, but the <code>ProvisioningState</code> value is blank and when I try to attach this to my Application Gateway using the <code>Add-AzureRmApplicationGatewayBackendAddressPool</code>, nothing fails but the Backend Address Pool is definitely not created/attached.</p>
  
  <p>Where am I going wrong?</p>