Merge pull request #177426 from vhorne/fw-prem-pol

add back Migrate to firewall policy button

Author: PRMerger9

articles/firewall/premium-migrate.md

@@ -5,7 +5,7 @@ author: vhorne
 ms.service: firewall
 services: firewall
 ms.topic: how-to
-ms.date: 10/21/2021
+ms.date: 10/26/2021
 ms.author: victorh 
 ms.custom: devx-track-azurepowershell
 ---
@@ -30,6 +30,21 @@ The firewall throughput might be lower than 30 Gbps when you have one or more si
 
 Migrate your firewall during a planned maintenance time, as there will be some downtime during the migration.
 
+## Migrate Classic rules to Standard policy
+
+During your migration process, you may need to migrate your Classic firewall rules to a Standard policy. You can do this using the Azure portal:
+
+1. From the Azure portal, select your standard firewall. On the **Overview** page, select **Migrate to firewall policy**.
+
+   :::image type="content" source="media/premium-migrate/firewall-overview-migrate.png" alt-text="Migrate to firewall policy":::
+
+1. On the **Migrate to firewall policy** page, select **Review + create**.
+1. Select **Create**.
+
+   The deployment takes a few minutes to complete.
+
+You can also migrate existing Classic rules from Azure Firewall using Azure PowerShell to create policies. For more information, see [Migrate Azure Firewall configurations to Azure Firewall policy using PowerShell](../firewall-manager/migrate-to-policy.md)
+
 ## Migrate an existing policy using Azure PowerShell
 
 `Transform-Policy.ps1` is an Azure PowerShell script that creates a new Premium policy from an existing Standard policy.