Merge pull request #280665 from ggailey777/ggailey777-patch-1

[Functions] Recommend disable local auth for App Insights w/ Entra

Author: v-regandowner

articles/azure-functions/configure-monitoring.md

@@ -3,7 +3,7 @@ title: Configure monitoring for Azure Functions
 description: Learn how to connect your function app to Application Insights for monitoring and how to configure data collection.
 ms.service: azure-functions
 ms.topic: how-to
-ms.date: 07/05/2024
+ms.date: 07/11/2024
 ms.custom: devdivchpfy22
 
 # Customer intent: As a developer, I want to understand how to configure monitoring for my functions correctly, so I can collect the data that I need.
@@ -293,6 +293,8 @@ For a function app to send data to Application Insights, it needs to connect to
 
 When you create your function app in the [Azure portal](./functions-get-started.md) from the command line by using [Azure Functions Core Tools](./create-first-function-cli-csharp.md) or [Visual Studio Code](./create-first-function-vs-code-csharp.md), Application Insights integration is enabled by default. The Application Insights resource has the same name as your function app, and is created either in the same region or in the nearest region.
 
+[!INCLUDE [functions-app-insights-disable-local-note](../../includes/functions-app-insights-disable-local-note.md)]
+
 ### New function app in the portal
 
 To review the Application Insights resource being created, select it to expand the **Application Insights** window. You can change the **New resource name** or select a different **Location** in an [Azure geography](https://azure.microsoft.com/global-infrastructure/geographies/) where you want to store your data.

articles/azure-functions/functions-app-settings.md

@@ -3,7 +3,7 @@ title: App settings reference for Azure Functions
 description: Reference documentation for the Azure Functions app settings or environment variables used to configure functions apps.
 ms.topic: conceptual
 ms.custom: devx-track-extended-java, devx-track-python, ignite-2023, build-2024, linux-related-content
-ms.date: 12/28/2023
+ms.date: 07/11/2024
 ---
 
 # App settings reference for Azure Functions
@@ -64,6 +64,8 @@ The connection string for Application Insights by using Microsoft Entra authenti
 |---|------------|
 |APPLICATIONINSIGHTS_AUTHENTICATION_STRING|`ClientId=<YOUR_CLIENT_ID>;Authorization=AAD`|
 
+[!INCLUDE [functions-app-insights-disable-local-note](../../includes/functions-app-insights-disable-local-note.md)]
+
 ## APPLICATIONINSIGHTS_CONNECTION_STRING
 
 The connection string for Application Insights. Don't use both `APPINSIGHTS_INSTRUMENTATIONKEY` and `APPLICATIONINSIGHTS_CONNECTION_STRING`. While the use of `APPLICATIONINSIGHTS_CONNECTION_STRING` is recommended in all cases, it's required in the following cases:

includes/functions-app-insights-disable-local-note.md

@@ -0,0 +1,11 @@
+---
+author: ggailey777
+ms.service: azure-functions
+ms.topic: include
+ms.date: 07/12/2024
+ms.author: glenga
+---
+
+>[!NOTE]
+>When using `APPLICATIONINSIGHTS_AUTHENTICATION_STRING` to connect to Application Insights using Microsoft Entra authentication, you should also [Disable local authentication for Application Insights](../articles/azure-monitor/app/azure-ad-authentication.md#disable-local-authentication). This configuration requires Microsoft Entra authentication in order for telemetry to be ingested into your workspace.
+