diff --git a/src/Common/Constants.ts b/src/Common/Constants.ts
index fe9c2672d..1eed03a4f 100644
--- a/src/Common/Constants.ts
+++ b/src/Common/Constants.ts
@@ -124,8 +124,9 @@ export enum MongoBackendEndpointType {
   remote,
 }
 
-export enum BackendApi {
-  GenerateToken,
+export class BackendApi {
+  public static readonly GenerateToken: string = "GenerateToken";
+  public static readonly PortalSettings: string = "PortalSettings";
 }
 
 export class PortalBackendEndpoints {
diff --git a/src/ConfigContext.ts b/src/ConfigContext.ts
index 3a8ef1cb5..435166b90 100644
--- a/src/ConfigContext.ts
+++ b/src/ConfigContext.ts
@@ -99,7 +99,6 @@ let configContext: Readonly<ConfigContext> = {
   JUNO_ENDPOINT: JunoEndpoints.Prod,
   BACKEND_ENDPOINT: "https://main.documentdb.ext.azure.com",
   PORTAL_BACKEND_ENDPOINT: PortalBackendEndpoints.Prod,
-  NEW_BACKEND_APIS: [BackendApi.GenerateToken],
   MONGO_PROXY_ENDPOINT: MongoProxyEndpoints.Prod,
   NEW_MONGO_APIS: [
     "resourcelist",
diff --git a/src/Explorer/QueryCopilot/Shared/QueryCopilotClient.ts b/src/Explorer/QueryCopilot/Shared/QueryCopilotClient.ts
index 6d2cafdc5..59101cbb3 100644
--- a/src/Explorer/QueryCopilot/Shared/QueryCopilotClient.ts
+++ b/src/Explorer/QueryCopilot/Shared/QueryCopilotClient.ts
@@ -1,6 +1,7 @@
 import { FeedOptions } from "@azure/cosmos";
 import {
   Areas,
+  BackendApi,
   ConnectionStatusType,
   ContainerStatusType,
   HttpStatusCodes,
@@ -30,6 +31,7 @@ import { Action } from "Shared/Telemetry/TelemetryConstants";
 import { traceFailure, traceStart, traceSuccess } from "Shared/Telemetry/TelemetryProcessor";
 import { userContext } from "UserContext";
 import { getAuthorizationHeader } from "Utils/AuthorizationUtils";
+import { useNewPortalBackendEndpoint } from "Utils/EndpointUtils";
 import { queryPagesUntilContentPresent } from "Utils/QueryUtils";
 import { QueryCopilotState, useQueryCopilot } from "hooks/useQueryCopilot";
 import { useTabs } from "hooks/useTabs";
@@ -80,7 +82,11 @@ export const isCopilotFeatureRegistered = async (subscriptionId: string): Promis
 };
 
 export const getCopilotEnabled = async (): Promise<boolean> => {
-  const url = `${configContext.BACKEND_ENDPOINT}/api/portalsettings/querycopilot`;
+  const backendEndpoint: string = useNewPortalBackendEndpoint(BackendApi.PortalSettings)
+    ? configContext.PORTAL_BACKEND_ENDPOINT
+    : configContext.BACKEND_ENDPOINT;
+
+  const url = `${backendEndpoint}/api/portalsettings/querycopilot`;
   const authorizationHeader: AuthorizationTokenHeaderMetadata = getAuthorizationHeader();
   const headers = { [authorizationHeader.header]: authorizationHeader.token };
 
diff --git a/src/Platform/Hosted/Components/ConnectExplorer.tsx b/src/Platform/Hosted/Components/ConnectExplorer.tsx
index 6b33d021b..749f248ba 100644
--- a/src/Platform/Hosted/Components/ConnectExplorer.tsx
+++ b/src/Platform/Hosted/Components/ConnectExplorer.tsx
@@ -1,6 +1,6 @@
 import { useBoolean } from "@fluentui/react-hooks";
 import { userContext } from "UserContext";
-import { usePortalBackendEndpoint } from "Utils/EndpointUtils";
+import { useNewPortalBackendEndpoint } from "Utils/EndpointUtils";
 import * as React from "react";
 import ConnectImage from "../../../../images/HdeConnectCosmosDB.svg";
 import ErrorImage from "../../../../images/error.svg";
@@ -19,7 +19,7 @@ interface Props {
 }
 
 export const fetchEncryptedToken = async (connectionString: string): Promise<string> => {
-  if (!usePortalBackendEndpoint(BackendApi.GenerateToken)) {
+  if (!useNewPortalBackendEndpoint(BackendApi.GenerateToken)) {
     return await fetchEncryptedToken_ToBeDeprecated(connectionString);
   }
 
diff --git a/src/Utils/EndpointUtils.ts b/src/Utils/EndpointUtils.ts
index 4962c285b..c59db4205 100644
--- a/src/Utils/EndpointUtils.ts
+++ b/src/Utils/EndpointUtils.ts
@@ -145,8 +145,22 @@ export const allowedJunoOrigins: ReadonlyArray<string> = [
 
 export const allowedNotebookServerUrls: ReadonlyArray<string> = [];
 
-export function usePortalBackendEndpoint(backendApi: BackendApi): boolean {
-  const activePortalBackendEndpoints: string[] = [PortalBackendEndpoints.Development];
-  const activeBackendApi: boolean = configContext.NEW_BACKEND_APIS?.includes(backendApi) || false;
-  return activeBackendApi && activePortalBackendEndpoints.includes(configContext.PORTAL_BACKEND_ENDPOINT as string);
+//
+// Temporary function to determine if a portal backend API is supported by the
+// new backend in this environment.
+//
+// TODO: Remove this function once new backend migration is completed for all environments.
+//
+export function useNewPortalBackendEndpoint(backendApi: string): boolean {
+  // This maps backend APIs to the environments supported by the new backend.
+  const newBackendApiEnvironmentMap: { [key: string]: string[] } = {
+    [BackendApi.GenerateToken]: [PortalBackendEndpoints.Development],
+    [BackendApi.PortalSettings]: [PortalBackendEndpoints.Development, PortalBackendEndpoints.Mpac],
+  };
+
+  if (!newBackendApiEnvironmentMap[backendApi] || !configContext.PORTAL_BACKEND_ENDPOINT) {
+    return false;
+  }
+
+  return newBackendApiEnvironmentMap[backendApi].includes(configContext.PORTAL_BACKEND_ENDPOINT);
 }