continuous export deprecation notice

Author: AarDavMax

articles/azure-monitor/app/convert-classic-resource.md

@@ -22,6 +22,11 @@ Workspace-based resources:
 > - Are available in all commercial regions and [Azure US Government](../../azure-government/index.yml).
 > - Don't require changing instrumentation keys after migration from a classic resource.
 
+> [!IMPORTANT]
+> * On February 29, 2024, continuous export will be deprecated as part of the classic Application Insights deprecation.
+> * When you [migrate to a workspace-based Application Insights resource](convert-classic-resource.md), you must use [diagnostic settings](#diagnostic-settings-based-export) for exporting telemetry. All [workspace-based Application Insights resources](./create-workspace-resource.md) must use [diagnostic settings](./create-workspace-resource.md#export-telemetry).
+> * Diagnostic settings export might increase costs. For more information, see [Diagnostic settings-based export](export-telemetry.md#diagnostic-settings-based-export).
+
 ## New capabilities
 
 Workspace-based Application Insights resources allow you to take advantage of the latest capabilities of Azure Monitor and Log Analytics: