diff --git a/src/common/copilot/PowerPagesCopilot.ts b/src/common/copilot/PowerPagesCopilot.ts
index 7eb70706..5f7a4b37 100644
--- a/src/common/copilot/PowerPagesCopilot.ts
+++ b/src/common/copilot/PowerPagesCopilot.ts
@@ -341,8 +341,9 @@ export class PowerPagesCopilot implements vscode.WebviewViewProvider {
         if (session) {
             intelligenceApiToken = session.accessToken;
             userName = getUserName(session.account.label);
-            userID = session?.account.id.split("/").pop() ??
-                session?.account.id;
+            userID = session?.account.id.split(/[./]/).shift() ??
+                session?.account.id ??
+                "";
         } else {
             intelligenceApiToken = "";
             userName = "";
@@ -406,7 +407,7 @@ export class PowerPagesCopilot implements vscode.WebviewViewProvider {
 
         const copilotAvailabilityStatus = checkCopilotAvailability(this.aibEndpoint, orgID, this.telemetry, sessionID, tenantId);
 
-        if(!copilotAvailabilityStatus) {
+        if (!copilotAvailabilityStatus) {
             this.sendMessageToWebview({ type: 'Unavailable' });
             return;
         } else {
diff --git a/src/common/services/AuthenticationProvider.ts b/src/common/services/AuthenticationProvider.ts
index 8c0ba021..ab4995df 100644
--- a/src/common/services/AuthenticationProvider.ts
+++ b/src/common/services/AuthenticationProvider.ts
@@ -66,7 +66,7 @@ export async function intelligenceAPIAuthentication(telemetry: ITelemetry, sessi
         }
         accessToken = session?.accessToken ?? '';
         user = session.account.label;
-        userId = session?.account.id.split("/").pop() ??
+        userId = session?.account.id.split(/[./]/).shift() ??
             session?.account.id ??
             "";
         if (!accessToken) {
@@ -112,7 +112,7 @@ export async function dataverseAuthentication(
         }
 
         accessToken = session?.accessToken ?? "";
-        userId = session?.account.id.split("/").pop() ??
+        userId = session?.account.id.split(/[./]/).shift() ??
             session?.account.id ??
             "";
         if (!accessToken) {
@@ -220,7 +220,7 @@ export async function graphClientAuthentication(
             sendTelemetryEvent(telemetry, {
                 eventName: VSCODE_EXTENSION_GRAPH_CLIENT_AUTHENTICATION_COMPLETED,
                 userId:
-                    session?.account.id.split("/").pop() ??
+                    session?.account.id.split(/[./]/).shift() ??
                     session?.account.id ??
                     "",
             });
@@ -269,7 +269,7 @@ export async function bapServiceAuthentication(
             sendTelemetryEvent(telemetry, {
                 eventName: VSCODE_EXTENSION_BAP_SERVICE_AUTHENTICATION_COMPLETED,
                 userId:
-                    session?.account.id.split("/").pop() ??
+                    session?.account.id.split(/[./]/).shift() ??
                     session?.account.id ??
                     "",
             });