Update Identity descriptions to include dependent extension list

src/pages/edge/identity-for-edge-network/index.md

@@ -11,7 +11,9 @@ import Tabs from './tabs/index.md'
 
 # Identity for Edge Network
 
-The Adobe Experience Platform Identity mobile extension enables identity management from your mobile app when using the Adobe Experience Platform Mobile SDK and the [Edge Network extension](../edge-network/index.md).
+The Adobe Experience Platform Identity mobile extension enables identity management, including the Experience Cloud ID (ECID), from your mobile app when using the Adobe Experience Platform Mobile SDK and the [Edge Network extension](../edge-network/index.md).
+
+Use the Identity for Edge Network extension when including the Edge Network extension into an application. The Identity for Edge Network extension is not used with Adobe Solution extensions, which must use the [Identity for Experience Cloud ID Service extension](../../home/base/mobile-core/identity/index.md).
 
 ## Configure the Identity extension in the Data Collection UI
 

src/pages/home/base/mobile-core/identity/index.md

@@ -14,6 +14,17 @@ import Tabs from './tabs/index.md'
 
 The Identity extension enables your app with the Experience Cloud ID (ECID). This service helps with the synchronization of Adobe and other customer identifiers.
 
+Include the Identity extension in your application when using any of the following Adobe Solution extensions:
+   * [Adobe Analytics](../../../../solution/adobe-analytics/index.md)
+   * [Adobe Audience Manager](../../../../solution/adobe-audience-manager/index.md)
+   * [Adobe Campaign Standard](../../../../solution/adobe-campaign-standard/index.md)
+   * [Adobe Media Analytics](../../../../solution/adobe-media-analytics/index.md)
+   * [Adobe Target](../../../../solution/adobe-target/index.md)
+
+When using 3rd party extensions, check with the extension developer to understand if the Identity extension is a required dependency.
+
+If your application uses the [Edge Network extension](../../../../edge/edge-network/index.md), then it must include the [Identity for Edge Network extension](../../../../edge/identity-for-edge-network/index.md). The Identity for Edge Network extension does not replace the Identity for Experience Cloud ID Service extension and both may be required in an application. See the [FAQ](../../../../edge/identity-for-edge-network/faq.md) for more information.
+
 <InlineAlert variant="warning" slots="text"/>
 
 On web or other platforms, there might situations where this extension might not be required, and the implementation of this SDK extension on mobile apps is required.