Update enable-wad.md

Author: hirenshah1

articles/cloud-services-extended-support/enable-wad.md

@@ -12,6 +12,10 @@ ms.custom: devx-track-azurepowershell, devx-track-arm-template
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 # Apply the Microsoft Azure diagnostics extension in Cloud Services (extended support) 
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+> [!IMPORTANT]
+> As of March 31, 2025, cloud Services (classic) is deprecated and will be fully retired on March 31, 2027. [Learn more](https://aka.ms/csesretirement) about this deprecation and [how to migrate](https://aka.ms/cses-retirement-march-2025).
+
 You can monitor key performance metrics for any cloud service. Every cloud service role collects minimal data: CPU usage, network usage, and disk utilization. If the cloud service has the Microsoft.Azure.Diagnostics extension applied to a role, that role can collect more points of data. For more information, see [Extensions Overview](extensions.md)
 
 Microsoft Azure Diagnostics extension can be enabled for Cloud Services (extended support) through [PowerShell](deploy-powershell.md) or [ARM template](deploy-template.md)