diff --git a/Composer/packages/client/src/recoilModel/dispatchers/builder.ts b/Composer/packages/client/src/recoilModel/dispatchers/builder.ts
index 2340d5a9cb..bbf82ccdf8 100644
--- a/Composer/packages/client/src/recoilModel/dispatchers/builder.ts
+++ b/Composer/packages/client/src/recoilModel/dispatchers/builder.ts
@@ -3,7 +3,7 @@
 /* eslint-disable react-hooks/rules-of-hooks */
 
 import { useRecoilCallback, CallbackInterface } from 'recoil';
-import { ILuisConfig, IQnAConfig } from '@bfc/shared';
+import { ILuisConfig, IQnAConfig, IOrchestratorConfig } from '@bfc/shared';
 
 import * as luUtil from '../../utils/luUtil';
 import * as qnaUtil from '../../utils/qnaUtil';
@@ -23,7 +23,8 @@ export const builderDispatcher = () => {
     (callbackHelpers: CallbackInterface) => async (
       projectId: string,
       luisConfig: ILuisConfig,
-      qnaConfig: IQnAConfig
+      qnaConfig: IQnAConfig,
+      orchestratorConfig: IOrchestratorConfig
     ) => {
       const { set, snapshot } = callbackHelpers;
       const dialogs = await snapshot.getPromise(dialogsWithLuProviderSelectorFamily(projectId));
@@ -53,6 +54,7 @@ export const builderDispatcher = () => {
         await httpClient.post(`/projects/${projectId}/build`, {
           luisConfig,
           qnaConfig,
+          orchestratorConfig,
           projectId,
           luFiles: referredLuFiles.map((file) => ({ id: file.id, isEmpty: file.empty })),
           qnaFiles: referredQnaFiles.map((file) => ({ id: file.id, isEmpty: file.empty })),
diff --git a/Composer/packages/client/src/recoilModel/selectors/localRuntimeBuilder.ts b/Composer/packages/client/src/recoilModel/selectors/localRuntimeBuilder.ts
index 31f0d36666..8c060d7881 100644
--- a/Composer/packages/client/src/recoilModel/selectors/localRuntimeBuilder.ts
+++ b/Composer/packages/client/src/recoilModel/selectors/localRuntimeBuilder.ts
@@ -46,6 +46,7 @@ export const buildEssentialsSelector = selectorFamily({
     const configuration = {
       luis: settings.luis,
       qna: settings.qna,
+      orchestrator: settings.orchestrator,
     };
     const dialogs = get(dialogsSelectorFamily(projectId));
     const luFiles = get(luFilesSelectorFamily(projectId));
@@ -115,7 +116,7 @@ const botRuntimeAction = (dispatcher: Dispatcher) => {
       if (config) {
         await dispatcher.downloadLanguageModels(projectId);
         dispatcher.setBotStatus(projectId, BotStatus.publishing);
-        await dispatcher.build(projectId, config.luis, config.qna);
+        await dispatcher.build(projectId, config.luis, config.qna, config.orchestrator);
       }
     },
     startBot: async (projectId: string, sensitiveSettings) => {
diff --git a/Composer/packages/server/src/controllers/project.ts b/Composer/packages/server/src/controllers/project.ts
index 252bae111d..8fe0bf604c 100644
--- a/Composer/packages/server/src/controllers/project.ts
+++ b/Composer/packages/server/src/controllers/project.ts
@@ -404,10 +404,11 @@ async function build(req: Request, res: Response) {
   const currentProject = await BotProjectService.getProjectById(projectId, user);
   if (currentProject !== undefined) {
     try {
-      const { luisConfig, qnaConfig, luFiles, qnaFiles } = req.body;
+      const { luisConfig, qnaConfig, orchestratorConfig, luFiles, qnaFiles } = req.body;
       const files = await currentProject.buildFiles({
         luisConfig,
         qnaConfig,
+        orchestratorConfig,
         luResource: luFiles,
         qnaResource: qnaFiles,
       });
diff --git a/Composer/packages/server/src/models/bot/botProject.ts b/Composer/packages/server/src/models/bot/botProject.ts
index c368c49115..acb6c5a19d 100644
--- a/Composer/packages/server/src/models/bot/botProject.ts
+++ b/Composer/packages/server/src/models/bot/botProject.ts
@@ -477,7 +477,13 @@ export class BotProject implements IBotProject {
     return createdFiles;
   };
 
-  public buildFiles = async ({ luisConfig, qnaConfig, luResource = [], qnaResource = [] }: IBuildConfig) => {
+  public buildFiles = async ({
+    luisConfig,
+    qnaConfig,
+    orchestratorConfig,
+    luResource = [],
+    qnaResource = [],
+  }: IBuildConfig) => {
     if (this.settings) {
       const luFiles: FileInfo[] = [];
       const emptyFiles = {};
@@ -501,7 +507,12 @@ export class BotProject implements IBotProject {
 
       this.builder.rootDir = this.dir;
       this.builder.setBuildConfig(
-        { ...luisConfig, subscriptionKey: qnaConfig.subscriptionKey ?? '', qnaRegion: qnaConfig.qnaRegion ?? '' },
+        {
+          ...luisConfig,
+          subscriptionKey: qnaConfig.subscriptionKey ?? '',
+          qnaRegion: qnaConfig.qnaRegion ?? '',
+          ...orchestratorConfig,
+        },
         this.settings.downsampling
       );
       await this.builder.build(
diff --git a/Composer/packages/server/src/models/bot/builder.ts b/Composer/packages/server/src/models/bot/builder.ts
index e606fbdbd0..7971cd85da 100644
--- a/Composer/packages/server/src/models/bot/builder.ts
+++ b/Composer/packages/server/src/models/bot/builder.ts
@@ -177,8 +177,12 @@ export class Builder {
     const nlrList = await this.runOrchestratorNlrList();
 
     const modelDatas = [
-      { model: nlrList?.defaults?.en_intent, lang: 'en', luFiles: enLuFiles },
-      { model: nlrList?.defaults?.multilingual_intent, lang: 'multilang', luFiles: multiLangLuFiles },
+      { model: this.config?.model?.en_intent ?? nlrList?.defaults?.en_intent, lang: 'en', luFiles: enLuFiles },
+      {
+        model: this.config?.model?.multilingual_intent ?? nlrList?.defaults?.multilingual_intent,
+        lang: 'multilang',
+        luFiles: multiLangLuFiles,
+      },
     ];
 
     for (const modelData of modelDatas) {
@@ -187,13 +191,13 @@ export class Builder {
           throw new Error('Model not set');
         }
         const modelPath = Path.resolve(await this.getModelPathAsync(), modelData.model.replace('.onnx', ''));
-        await this.runOrchestratorNlrGet(modelPath, modelData.model);
+        if (!(await pathExists(modelPath))) {
+          throw new Error('Orchestrator Model missing: ' + modelPath);
+        }
         const snapshotData = await this.buildOrchestratorSnapshots(modelPath, modelData.luFiles, emptyFiles);
 
         this.orchestratorSettings.orchestrator.models[modelData.lang] = modelPath;
-        for (const snap in snapshotData) {
-          this.orchestratorSettings.orchestrator.snapshots[snap] = snapshotData[snap];
-        }
+        this.orchestratorSettings.orchestrator.snapshots = snapshotData;
       }
     }
 
@@ -215,7 +219,7 @@ export class Builder {
     luFiles: FileInfo[],
     emptyFiles: { [key: string]: boolean }
   ) => {
-    if (!luFiles.filter((file) => !emptyFiles[file.name]).length) return;
+    if (!luFiles.filter((file) => !emptyFiles[file.name]).length) return {};
     // build snapshots from LU files
     return await orchestratorBuilder.build(this.botDir, luFiles, modelPath, this.generatedFolderPath);
   };
diff --git a/Composer/packages/server/src/models/bot/interface.ts b/Composer/packages/server/src/models/bot/interface.ts
index e2e6495474..4c9e3b5c59 100644
--- a/Composer/packages/server/src/models/bot/interface.ts
+++ b/Composer/packages/server/src/models/bot/interface.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
-import { BaseSchema, ILuisConfig, IQnAConfig } from '@bfc/shared';
+import { BaseSchema, ILuisConfig, IQnAConfig, IOrchestratorConfig } from '@bfc/shared';
 
 export type Resource = { id: string; isEmpty: boolean };
 
@@ -13,6 +13,7 @@ export interface LocationRef {
 export interface IBuildConfig {
   luisConfig: ILuisConfig;
   qnaConfig: IQnAConfig;
+  orchestratorConfig?: IOrchestratorConfig;
   luResource: Resource[];
   qnaResource: Resource[];
 }
diff --git a/Composer/packages/server/src/models/bot/process/orchestratorWorker.ts b/Composer/packages/server/src/models/bot/process/orchestratorWorker.ts
index e667725b33..74962706de 100644
--- a/Composer/packages/server/src/models/bot/process/orchestratorWorker.ts
+++ b/Composer/packages/server/src/models/bot/process/orchestratorWorker.ts
@@ -129,12 +129,29 @@ export async function orchestratorBuilder(
 ): Promise<IOrchestratorBuildOutput> {
   const orchestratorLabelResolvers = cache.get(projectId);
 
+  //if user has changed language model settings, invalidate cached embeddings for that dialog
+  const keysToInvalidate: string[] = [];
+
+  for (const [key, labelResolver] of orchestratorLabelResolvers.entries()) {
+    //JSON.parse can throw - this is expected to be caught in the process message handler below.
+    const modelName: string | undefined = JSON.parse(LabelResolver.getConfigJson(labelResolver))?.Name;
+
+    if (modelName && modelName !== Path.basename(modelPath) + '.onnx') {
+      keysToInvalidate.push(key);
+    }
+  }
+
+  for (const key of keysToInvalidate) {
+    orchestratorLabelResolvers.delete(key);
+  }
+
   const luObjects = files
     .filter((fi) => fi.name.endsWith('.lu') && fi.content)
     .map((fi) => ({
       id: fi.name,
       content: fi.content,
     }));
+
   const result = await Orchestrator.buildAsync(
     modelPath,
     luObjects,
diff --git a/Composer/packages/types/src/publish.ts b/Composer/packages/types/src/publish.ts
index e61f08a999..9261661978 100644
--- a/Composer/packages/types/src/publish.ts
+++ b/Composer/packages/types/src/publish.ts
@@ -5,7 +5,7 @@ import type { JSONSchema7 } from 'json-schema';
 
 import type { IBotProject } from './server';
 import type { UserIdentity } from './user';
-import type { ILuisConfig, IQnAConfig } from './settings';
+import type { ILuisConfig, IOrchestratorConfig, IQnAConfig } from './settings';
 import { AuthParameters } from './auth';
 
 export type PublishResult = {
@@ -133,6 +133,7 @@ export type PublishPlugin<Config = any> = {
 export type IPublishConfig = {
   luis: ILuisConfig;
   qna: IQnAConfig;
+  orchestrator?: IOrchestratorConfig;
 };
 
 export type PublishTarget = {
diff --git a/Composer/packages/types/src/settings.ts b/Composer/packages/types/src/settings.ts
index 18230e82df..2e9febee7d 100644
--- a/Composer/packages/types/src/settings.ts
+++ b/Composer/packages/types/src/settings.ts
@@ -47,6 +47,7 @@ export type DialogSetting = {
   MicrosoftAppId?: string;
   MicrosoftAppPassword?: string;
   luis: ILuisConfig;
+  orchestrator?: IOrchestratorConfig;
   luFeatures: ILUFeaturesConfig;
   qna: IQnAConfig;
   publishTargets?: PublishTarget[];
@@ -99,11 +100,16 @@ export type IQnAConfig = {
   hostname?: string;
 };
 
-export type IConfig = ILuisConfig & {
-  subscriptionKey: string;
-  qnaRegion: string | 'westus';
+export type IOrchestratorConfig = {
+  model?: Record<'en_intent' | 'multilingual_intent', string>;
 };
 
+export type IConfig = ILuisConfig &
+  IOrchestratorConfig & {
+    subscriptionKey: string;
+    qnaRegion: string | 'westus';
+  };
+
 export type LgOptions = {
   customFunctions: string[];
 };