Merge pull request #95112 from CawaMS/master

refresh screenshots and web app onboarding instructions

Author: GitHubber17

articles/azure-monitor/app/change-analysis.md

@@ -27,11 +27,15 @@ The following diagram illustrates the architecture of Change Analysis:
 
 ![Architecture diagram of how Change Analysis gets change data and provides it to client tools](./media/change-analysis/overview.png)
 
-Currently Change Analysis is integrated into the **Diagnose and solve problems** experience in the App Service web app. To enable change detection and view changes in the web app, see the *Change Analysis for the Web Apps feature* section later in this article.
+Currently Change Analysis is integrated into the **Diagnose and solve problems** experience in the App Service web app, as well as available as a standalone blade in Azure portal.
+See the *Viewing changes for all resources in Azure* section to access Change Analysis blade and the *Change Analysis for the Web Apps feature* section for using it within Web App portal later in this article.
 
-### Azure Resource Manager deployment changes
+### Azure Resource Manager tracked properties changes
 
-Using [Azure Resource Graph](https://docs.microsoft.com/azure/governance/resource-graph/overview), Change Analysis provides a historical record of how the Azure resources that host your application have changed over time. Change Analysis can detect, for example, changes in IP configuration rules, managed identities, and SSL settings. So if a tag is added to a web app, Change Analysis reflects the change. This information is available as long as the `Microsoft.ChangeAnalysis` resource provider is enabled in the Azure subscription.
+Using [Azure Resource Graph](https://docs.microsoft.com/azure/governance/resource-graph/overview), Change Analysis provides a historical record of how the Azure resources that host your application have changed over time. Tracked settings such as managed identities, Platform OS upgrade, and hostnames can be detected.
+
+### Azure Resource Manager proxied setting changes
+Settings such as IP Configuration rule, SSL settings and extension versions are not yet available in ARG, so Change Analysis queries and computes these changes securely to provide more details in what changed in the app. These information is not available yet in Azure Resource Graph but will be available soon.
 
 ### Changes in web app deployment and configuration (in-guest changes)
 
@@ -47,6 +51,10 @@ Currently the following dependencies are supported:
 - Azure Storage
 - Azure SQL
 
+### Enablement
+"Microsoft.ChangeAnalysis" resource provider needs to be registered with a subscription for the Azure Resource Manager tracked properties and proxied settings change data to be available. As you enter the Web App diagnose and solve problems or bring up the Change Analysis standalone blade, this resource provider is automatically registered. It does not have any performance and cost implementations for your subscription.
+For web app in-guest changes, separate enablement is required for scanning code files within a web app. See *Enable Change Analysis in the Diagnose and solve problems tool* section later in this article for more details.
+
 ## Viewing changes for all resources in Azure
 In Azure Monitor, there is a standalone blade for Change Analysis to view all changes with insights and application dependencies resources.
 
@@ -66,7 +74,7 @@ Currently supported resources include:
 - Azure Networking resources
 - Web app with in-guest file tracking and environment variables changes
 
-For any feedback, please use the send feedback button in the blade or email [email protected]. 
+For any feedback, please use the send feedback button in the blade or email [email protected].
 
 ![Screenshot of feedback button in Change Analysis blade](./media/change-analysis/change-analysis-feedback.png)
 
@@ -90,12 +98,12 @@ In Azure Monitor, Change Analysis is also built into the self-service **Diagnose
 
    ![Screenshot of "Application Crashes" options](./media/change-analysis/enable-changeanalysis.png)
 
-1. Turn on **Change Analysis** and select **Save**.
+1. Turn on **Change Analysis** and select **Save**. The tool displays all web apps under an App Services plan. You can use the plan level switch to turn on Change Analysis for all web apps under a plan.
 
     ![Screenshot of the "Enable Change Analysis" user interface](./media/change-analysis/change-analysis-on.png)
 
 
-1. To access Change Analysis, select **Diagnose and solve problems** > **Availability and Performance** > **Application Crashes**. You'll see a graph that summarizes the type of changes over time along with details on those changes:
+1. To access Change Analysis, select **Diagnose and solve problems** > **Availability and Performance** > **Application Crashes**. You'll see a graph that summarizes the type of changes over time along with details on those changes. By default, changes in the past 24 hours are displayed to help with immediate problems.
 
      ![Screenshot of the change diff view](./media/change-analysis/change-view.png)