Merge pull request #114341 from DawgFan/patch-3

Link doc usage docs together

Author: PRMerger6

articles/azure-monitor/app/api-custom-events-metrics.md

@@ -647,7 +647,7 @@ Ideally, flush() method should be used in the shutdown activity of the Applicati
 
 ## Authenticated users
 
-In a web app, users are (by default) identified by cookies. A user might be counted more than once if they access your app from a different machine or browser, or if they delete cookies.
+In a web app, users are (by default) [identified by cookies](../../azure-monitor/app/usage-segmentation.md#the-users-sessions-and-events-segmentation-tool). A user might be counted more than once if they access your app from a different machine or browser, or if they delete cookies.
 
 If users sign in to your app, you can get a more accurate count by setting the authenticated user ID in the browser code: