Merge pull request #231084 from aimee-littleton/patch-129

update scale snat doc

Author: prmerger-automator[bot]

articles/firewall/integrate-with-nat-gateway.md

@@ -23,7 +23,7 @@ When a NAT gateway resource is associated with an Azure Firewall subnet, all out
 There’s no double NAT with this architecture. Azure Firewall instances send the traffic to NAT gateway using their private IP address rather than Azure Firewall public IP address.
 
 > [!NOTE]
-> Using Azure Virtual Network NAT is currently incompatible with Azure Firewall if you have deployed your [Azure Firewall across multiple availability zones](deploy-availability-zone-powershell.md).
+> Deploying NAT gateway with a [zone redundant firewall]((deploy-availability-zone-powershell.md) is not recommended deployment option, as the NAT gateway does not support zonal deployment at this time. In order to use NAT gateway with Azure Firewall, a zonal Firewall deployment is required. 
 >
 > In addition, Azure Virtual Network NAT integration is not currently supported in secured virtual hub network architectures. You must deploy using a hub virtual network architecture. For detailed guidance on integrating NAT gateway with Azure Firewall in a hub and spoke network architecture refer to the [NAT gateway and Azure Firewall integration tutorial](../virtual-network/nat-gateway/tutorial-hub-spoke-nat-firewall.md). For more information about Azure Firewall architecture options, see [What are the Azure Firewall Manager architecture options?](../firewall-manager/vhubs-and-vnets.md).
 
@@ -68,4 +68,4 @@ az network vnet subnet update --name AzureFirewallSubnet --vnet-name nat-vnet --
 ## Next steps
 
 - [Design virtual networks with NAT gateway](../virtual-network/nat-gateway/nat-gateway-resource.md)
-- [Integrate NAT gateway with Azure Firewall in a hub and spoke network](../virtual-network/nat-gateway/tutorial-hub-spoke-nat-firewall.md)
+- [Integrate NAT gateway with Azure Firewall in a hub and spoke network](../virtual-network/nat-gateway/tutorial-hub-spoke-nat-firewall.md)