diff --git a/functionalTests/dxService/loadSurvey.js b/functionalTests/dxService/loadSurvey.js
index bce655d61a..3268f346be 100644
--- a/functionalTests/dxService/loadSurvey.js
+++ b/functionalTests/dxService/loadSurvey.js
@@ -13,7 +13,7 @@ frameworks.forEach(framework => {
     }
   );
 
-  test("correct loading", async t => {
+  test.skip("correct loading", async t => {
     let surveyResult;
 
     await setRowItemFlowDirection();
diff --git a/packages/survey-core/entries/chunks/model.ts b/packages/survey-core/entries/chunks/model.ts
index d85628fb02..29186e12f8 100644
--- a/packages/survey-core/entries/chunks/model.ts
+++ b/packages/survey-core/entries/chunks/model.ts
@@ -243,7 +243,6 @@ export { TextPreProcessor } from "../../src/textPreProcessor";
 export { Notifier } from "../../src/notifier";
 export { Cover, CoverCell } from "../../src/header";
 
-export { dxSurveyService } from "../../src/dxSurveyService";
 export { englishStrings } from "../../src/localization/english";
 export { surveyLocalization, surveyStrings, getLocaleString, getLocaleStrings, setupLocale } from "../../src/surveyStrings";
 // export { cultureInfo } from "../../src/cultureInfo";
diff --git a/packages/survey-core/src/dxSurveyService.ts b/packages/survey-core/src/dxSurveyService.ts
deleted file mode 100644
index 44fec08a13..0000000000
--- a/packages/survey-core/src/dxSurveyService.ts
+++ /dev/null
@@ -1,138 +0,0 @@
-import { settings } from "./settings";
-import { getLocaleString } from "./surveyStrings";
-
-const surveyIOSite = "surveyjs.io";
-const surveyIOMaxPostSize = 65536;
-/**
- * The class contains methods to work with api.surveyjs.io service.
- */
-export class dxSurveyService {
-  public locale: string;
-  public static get serviceUrl(): string {
-    return settings.web.surveyServiceUrl;
-  }
-  public static set serviceUrl(val: string) {
-    settings.web.surveyServiceUrl = val;
-  }
-  public loadSurvey(surveyId: string,
-    onLoad: (success: boolean, result: string, response: any) => void): void {
-    var xhr = new XMLHttpRequest();
-    xhr.open(
-      "GET",
-      this.serviceUrl + "/getSurvey?surveyId=" + surveyId
-    );
-    xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-    xhr.onload = function () {
-      var result = JSON.parse(xhr.response);
-      onLoad(xhr.status == 200, result, xhr.response);
-    };
-    xhr.send();
-  }
-  public getSurveyJsonAndIsCompleted(surveyId: string, clientId: string,
-    onLoad: (success: boolean, surveyJson: any, result: string, response: any) => void): void {
-    var xhr = new XMLHttpRequest();
-    xhr.open(
-      "GET",
-      this.serviceUrl +
-      "/getSurveyAndIsCompleted?surveyId=" +
-      surveyId +
-      "&clientId=" +
-      clientId
-    );
-    xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-    xhr.onload = function () {
-      var result = JSON.parse(xhr.response);
-      var surveyJson = result ? result.survey : null;
-      var isCompleted = result ? result.isCompleted : null;
-      onLoad(xhr.status == 200, surveyJson, isCompleted, xhr.response);
-    };
-    xhr.send();
-  }
-  public canSendResult(result: JSON): boolean {
-    if (!this.isSurveJSIOService) return true;
-    const str = JSON.stringify(result);
-    return str.length < surveyIOMaxPostSize;
-  }
-  public get isSurveJSIOService(): boolean {
-    return this.serviceUrl.indexOf(surveyIOSite) >= 0;
-  }
-  public sendResult(postId: string, result: JSON,
-    onSendResult: (success: boolean, response: any, request?: any) => void,
-    clientId: string = null, isPartialCompleted: boolean = false): void {
-    if (!this.canSendResult(result)) {
-      onSendResult(false, getLocaleString("savingExceedSize", this.locale), undefined);
-    } else {
-      this.sendResultCore(postId, result, onSendResult, clientId, isPartialCompleted);
-    }
-  }
-  protected sendResultCore(postId: string, result: JSON,
-    onSendResult: (success: boolean, response: any, request?: any) => void,
-    clientId: string = null, isPartialCompleted: boolean = false): void {
-    var xhr = new XMLHttpRequest();
-    xhr.open("POST", this.serviceUrl + "/post/");
-    xhr.setRequestHeader("Content-Type", "application/json; charset=utf-8");
-    var data = { postId: postId, surveyResult: JSON.stringify(result) };
-    if (clientId) (<any>data)["clientId"] = clientId;
-    if (isPartialCompleted) (<any>data)["isPartialCompleted"] = true;
-    var dataStringify: string = JSON.stringify(data);
-    xhr.onload = xhr.onerror = function () {
-      if (!onSendResult) return;
-      onSendResult(xhr.status === 200, xhr.response, xhr);
-    };
-    xhr.send(dataStringify);
-  }
-  public sendFile(postId: string, file: File,
-    onSendFile: (success: boolean, response: any) => void): void {
-    var xhr = new XMLHttpRequest();
-    xhr.onload = xhr.onerror = function () {
-      if (!onSendFile) return;
-      onSendFile(xhr.status == 200, JSON.parse(xhr.response));
-    };
-    xhr.open("POST", this.serviceUrl + "/upload/", true);
-    var formData = new FormData();
-    formData.append("file", file);
-    formData.append("postId", postId);
-    xhr.send(formData);
-  }
-  public getResult(resultId: string, name: string,
-    onGetResult: (success: boolean, data: any, dataList: Array<any>, response: any) => void): void {
-    var xhr = new XMLHttpRequest();
-    var data = "resultId=" + resultId + "&name=" + name;
-    xhr.open("GET", this.serviceUrl + "/getResult?" + data);
-    xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-    var self = this;
-    xhr.onload = function () {
-      var result = null;
-      var list = null;
-      if (xhr.status == 200) {
-        result = JSON.parse(xhr.response);
-        list = [];
-        for (var key in result.QuestionResult) {
-          var el = { name: key, value: result.QuestionResult[key] };
-          list.push(el);
-        }
-      }
-      onGetResult(xhr.status == 200, result, list, xhr.response);
-    };
-    xhr.send();
-  }
-  public isCompleted(resultId: string, clientId: string,
-    onIsCompleted: (success: boolean, result: string, response: any) => void): void {
-    var xhr = new XMLHttpRequest();
-    var data = "resultId=" + resultId + "&clientId=" + clientId;
-    xhr.open("GET", this.serviceUrl + "/isCompleted?" + data);
-    xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-    var self = this;
-    xhr.onload = function () {
-      var result = null;
-      if (xhr.status == 200) {
-        result = JSON.parse(xhr.response);
-      }
-      onIsCompleted(xhr.status == 200, result, xhr.response);
-    };
-    xhr.send();
-  }
-  private get serviceUrl(): string {
-    return dxSurveyService.serviceUrl || "";
-  }
-}
diff --git a/packages/survey-core/src/settings.ts b/packages/survey-core/src/settings.ts
index c82e51edc0..a2e38ef51e 100644
--- a/packages/survey-core/src/settings.ts
+++ b/packages/survey-core/src/settings.ts
@@ -117,7 +117,7 @@ export var settings = {
    * Disables a question while its choices are being loaded from a web service. Default value: `false`.
    *
    * - `surveyServiceUrl`: `string`\
-   * The URL of the SurveyJS Service API endpoint.
+   * Obsolete. Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    *
    * - `onBeforeRequestChoices`: `(sender: ChoicesRestful, options: { request: XMLHttpRequest })`\
    * An event that is raised before a request for choices is send. Applies to questions with a specified [`choiceByUrl`](https://surveyjs.io/form-library/documentation/api-reference/questionselectbase#choicesByUrl) property. Use the `options.request` parameter to access and modify the `XMLHttpRequest` object. For instance, you can add authentication headers to it:
@@ -125,7 +125,7 @@ export var settings = {
    *     ```js
    *     import { settings } from "survey-core";
    *
-   *     settings.web.onBeforeSendRequest = (sender, options) => {
+   *     settings.web.onBeforeRequestChoices = (sender, options) => {
    *       options.request.setRequestHeader('RequestVerificationToken', requestVerificationToken);
    *     };
    *     ```
@@ -134,8 +134,7 @@ export var settings = {
     onBeforeRequestChoices: (sender: any, options: { request: XMLHttpRequest }): void => { },
     encodeUrlParams: true,
     cacheLoadedChoices: true,
-    disableQuestionWhileLoadingChoices: false,
-    surveyServiceUrl: "https://api.surveyjs.io/public/v1/Survey"
+    disableQuestionWhileLoadingChoices: false
   },
 
   //#region web section, obsolete properties
@@ -147,8 +146,6 @@ export var settings = {
   set useCachingForChoicesRestfull(val: boolean) { this.web.cacheLoadedChoices = val; },
   get disableOnGettingChoicesFromWeb(): boolean { return this.web.disableQuestionWhileLoadingChoices; },
   set disableOnGettingChoicesFromWeb(val: boolean) { this.web.disableQuestionWhileLoadingChoices = val; },
-  get surveyServiceUrl(): string { return this.web.surveyServiceUrl; },
-  set surveyServiceUrl(val: string) { this.web.surveyServiceUrl = val; },
   //#endregion
 
   /**
diff --git a/packages/survey-core/src/survey.ts b/packages/survey-core/src/survey.ts
index 9255342ebe..7f1698b72e 100644
--- a/packages/survey-core/src/survey.ts
+++ b/packages/survey-core/src/survey.ts
@@ -30,7 +30,6 @@ import { CalculatedValue } from "./calculatedValue";
 import { PageModel } from "./page";
 import { TextPreProcessor, TextPreProcessorValue } from "./textPreProcessor";
 import { ProcessValue } from "./conditionProcessValue";
-import { dxSurveyService } from "./dxSurveyService";
 import { surveyLocalization } from "./surveyStrings";
 import { CustomError } from "./error";
 import { LocalizableString } from "./localizablestring";
@@ -474,12 +473,11 @@ export class SurveyModel extends SurveyElementCore
 
   public onTextRenderAs: EventBase<SurveyModel, any> = this.addEvent<SurveyModel, any>();
   /**
-   * An event that is raised after a request to save survey results on [SurveyJS Service](https://api.surveyjs.io/) has been completed. Use this event to find out if the results have been saved successfully.
+   * @deprecated Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    */
   public onSendResult: EventBase<SurveyModel, SendResultEvent> = this.addEvent<SurveyModel, SendResultEvent>();
   /**
-   * An event that is raised when the [`getResult(resultId, questionName)`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#getResult) method is called. Use this event to obtain answers to an individual question from [SurveyJS Service](https://api.surveyjs.io/).
-   * @see getResult
+   * @deprecated Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    */
   public onGetResult: EventBase<SurveyModel, GetResultEvent> = this.addEvent<SurveyModel, GetResultEvent>();
   /**
@@ -530,10 +528,7 @@ export class SurveyModel extends SurveyElementCore
   public onLoadChoicesFromServer: EventBase<SurveyModel, LoadChoicesFromServerEvent> = this.onChoicesLoaded;
 
   /**
-   * An event that is raised after a survey JSON schema is loaded from the [SurveyJS Service](https://api.surveyjs.io). Use this event to modify the loaded schema.
-   * @see surveyId
-   * @see clientId
-   * @see loadSurveyFromService
+   * @deprecated Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    */
   public onLoadedSurveyFromService: EventBase<SurveyModel, {}> = this.addEvent<SurveyModel, {}>();
 
@@ -1443,11 +1438,7 @@ export class SurveyModel extends SurveyElementCore
     this.setPropertyValue("calculatedValues", val);
   }
   /**
-   * The identifier of a survey JSON schema to load from [SurveyJS Service](https://api.surveyjs.io).
-   *
-   * Refer to the following help topic for more information: [Store Survey Results in the SurveyJS Service](https://surveyjs.io/form-library/documentation/handle-survey-results-store#store-survey-results-in-the-surveyjs-service).
-   * @see loadSurveyFromService
-   * @see onLoadedSurveyFromService
+   * @deprecated Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    */
   public get surveyId(): string {
     return this.getPropertyValue("surveyId", "");
@@ -1456,11 +1447,7 @@ export class SurveyModel extends SurveyElementCore
     this.setPropertyValue("surveyId", val);
   }
   /**
-   * An identifier used to save survey results to [SurveyJS Service](https://api.surveyjs.io).
-   *
-   * Refer to the following help topic for more information: [Store Survey Results in the SurveyJS Service](https://surveyjs.io/form-library/documentation/handle-survey-results-store#store-survey-results-in-the-surveyjs-service).
-   * @see onComplete
-   * @see surveyShowDataSaving
+   * @deprecated Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    */
   public get surveyPostId(): string {
     return this.getPropertyValue("surveyPostId", "");
@@ -1469,10 +1456,7 @@ export class SurveyModel extends SurveyElementCore
     this.setPropertyValue("surveyPostId", val);
   }
   /**
-   * A user identifier (e-mail or other unique ID).
-   *
-   * If your application works with [SurveyJS Service](https://api.surveyjs.io), the ID ensures that users do not pass the same survey twice. On the second run, they will see the [Completed Before page](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#completedBeforeHtml).
-   * @see cookieName
+   * @deprecated Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    */
   public get clientId(): string {
     return this.getPropertyValue("clientId", "");
@@ -1513,10 +1497,7 @@ export class SurveyModel extends SurveyElementCore
     this.partialSendEnabled = val;
   }
   /**
-   * Specifies whether to show progress when the survey sends data to [SurveyJS Service](https://api.surveyjs.io).
-   *
-   * [View Demo](https://surveyjs.io/form-library/examples/save-survey-results-and-load-surveys-from-surveyjs-service/ (linkStyle))
-   * @see surveyPostId
+   * @deprecated Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    */
   public get surveyShowDataSaving(): boolean {
     return this.getPropertyValue("surveyShowDataSaving");
@@ -2585,8 +2566,7 @@ export class SurveyModel extends SurveyElementCore
     return this.getLocalizableString("completedBeforeHtml");
   }
   /**
-   * HTML content displayed while a survey JSON schema is being loaded from [SurveyJS Service](https://api.surveyjs.io).
-   * @see surveyId
+   * HTML content displayed while a survey JSON schema is [being loaded](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#beginLoading).
    * @see processedLoadingHtml
    */
   public get loadingHtml(): string {
@@ -3791,7 +3771,20 @@ export class SurveyModel extends SurveyElementCore
   private set isLoading(val: boolean) {
     this.setPropertyValue("isLoading", val);
   }
-
+  /**
+   * Displays the [Loading page](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#loadingHtml).
+   * @see endLoading
+   */
+  public beginLoading(): void {
+    this.isLoading = true;
+  }
+  /**
+   * Stops displaying the [Loading page](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#loadingHtml).
+   * @see beginLoading
+   */
+  public endLoading(): void {
+    this.isLoading = false;
+  }
   public get completedState(): string {
     return this.getPropertyValue("completedState", "");
   }
@@ -4876,14 +4869,12 @@ export class SurveyModel extends SurveyElementCore
    * 1. Switches the survey [`state`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#state) to `"completed"`.
    * 1. Raises the [`onComplete`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#onComplete) event.
    * 1. Navigates the user to a URL specified by the [`navigateToUrl`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#navigateToUrl) or [`navigateToUrlOnCondition`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#navigateToUrlOnCondition) property.
-   * 1. Calls the [`sendResult()`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#sendResult) method if Form Library works with [SurveyJS Service](https://api.surveyjs.io/).
    *
    * The `doComplete()` method completes the survey regardless of validation errors and the current page. If you need to ensure that survey results are valid and full, call the [`completeLastPage()`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#completeLastPage) method instead.
    *
    * @param isCompleteOnTrigger For internal use.
    * @param completeTrigger For internal use.
    * @returns `false` if survey completion is cancelled within the [`onCompleting`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#onCompleting) event handler; otherwise, `true`.
-   * @see surveyPostId
    */
   public doComplete(isCompleteOnTrigger: boolean = false, completeTrigger?: Trigger): boolean {
     if (this.isCompleted) return;
@@ -5129,7 +5120,7 @@ export class SurveyModel extends SurveyElementCore
     return this.locCompletedBeforeHtml.textOrHtml;
   }
   /**
-   * Returns HTML content displayed while a survey JSON schema is being loaded from [SurveyJS Service](https://api.surveyjs.io).
+   * Returns HTML content displayed while a survey JSON schema is [being loaded](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#beginLoading).
    *
    * To specify HTML content, use the [`loadingHtml`](#loadingHtml) property.
    */
@@ -5736,12 +5727,8 @@ export class SurveyModel extends SurveyElementCore
    * @see onUploadFiles
    * @see downloadFile
    */
-  public uploadFiles(
-    question: QuestionFileModel | QuestionSignaturePadModel,
-    name: string,
-    files: File[],
-    callback: (data: any | Array<any>, errors?: any | Array<any>) => any
-  ) {
+  public uploadFiles(question: QuestionFileModel | QuestionSignaturePadModel, name: string, files: File[],
+    callback: (data: any | Array<any>, errors?: any | Array<any>) => any): void {
     if (this.onUploadFiles.isEmpty) {
       callback("error", this.getLocString("noUploadFilesHandler"));
     } else {
@@ -5812,33 +5799,9 @@ export class SurveyModel extends SurveyElementCore
   loadedChoicesFromServer(question: IQuestion): void {
     this.locStrsChanged();
   }
-  protected createSurveyService(): dxSurveyService {
-    return new dxSurveyService();
-  }
   protected uploadFilesCore(name: string, files: File[],
     uploadingCallback: (data: any | Array<any>, errors?: any | Array<any>,) => any): void {
-    var responses: Array<any> = [];
-    files.forEach((file) => {
-      if (uploadingCallback) uploadingCallback("uploading", file);
-      this.createSurveyService().sendFile(
-        this.surveyPostId,
-        file,
-        (success: boolean, response: any) => {
-          if (success) {
-            responses.push({ content: response, file: file });
-            if (responses.length === files.length) {
-              if (uploadingCallback) uploadingCallback("success", responses);
-            }
-          } else {
-            if (uploadingCallback)
-              uploadingCallback("error", {
-                response: response,
-                file: file,
-              });
-          }
-        }
-      );
-    });
+    this.reportWarningOnUsingService();
   }
   getPage(index: number): PageModel {
     return this.pages[index];
@@ -6435,10 +6398,7 @@ export class SurveyModel extends SurveyElementCore
     }
   }
   /**
-   * Posts a survey result to [SurveyJS Service](https://api.surveyjs.io/).
-   * @param postId An identifier used to save survey results. You can find it on the [My Surveys](https://surveyjs.io/service/mysurveys) page. If you do not specify this parameter, the survey uses the [`surveyPostId`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#surveyPostId) property value.
-   * @param clientId A respondent identifier (e-mail or other unique ID). This ID ensures that the respondent does not pass the same survey twice.
-   * @param isPartial Pass `true` to save partial survey results (see [Continue an Incomplete Survey](https://surveyjs.io/form-library/documentation/handle-survey-results-continue-incomplete)).
+   * @deprecated Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    */
   public sendResult(postId: string = null, clientId: string = null, isPartial: boolean = false): void {
     if (!this.isEditMode) return;
@@ -6454,96 +6414,28 @@ export class SurveyModel extends SurveyElementCore
       this.clientId = clientId;
     }
     if (isPartial && !this.clientId) return;
-    const service = this.createSurveyService();
-    service.locale = this.getLocale();
-    const showSaving = this.surveyShowDataSaving || (!isPartial && service.isSurveJSIOService);
-    if (showSaving) {
-      this.setCompletedState("saving", "");
-    }
-    service.sendResult(postId, this.data,
-      (success: boolean, response: any, request: any) => {
-        if (showSaving || service.isSurveJSIOService) {
-          if (success) {
-            this.setCompletedState("success", "");
-          } else {
-            this.setCompletedState("error", response);
-          }
-        }
-        const options = { success: success, response: response, request: request };
-        this.onSendResult.fire(this, options);
-      },
-      this.clientId,
-      isPartial
-    );
+    this.reportWarningOnUsingService();
   }
   /**
-   * Requests [SurveyJS Service](https://api.surveyjs.io/) to retrieve all answers to a specified question. Handle the [`onGetResult`](https://surveyjs.io/form-library/documentation/api-reference/survey-data-model#onGetResult) event to access the answers.
-   * @param resultId A result ID that identifies the required survey. You can find it on the [My Surveys](https://surveyjs.io/service/mysurveys) page.
-   * @param questionName A question name.
+   * @deprecated Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    */
-  public getResult(resultId: string, questionName: string) {
-    var self = this;
-    this.createSurveyService().getResult(resultId, questionName, function (
-      success: boolean,
-      data: any,
-      dataList: any[],
-      response: any
-    ) {
-      self.onGetResult.fire(self, {
-        success: success,
-        data: data,
-        dataList: dataList,
-        response: response,
-      });
-    });
+  public getResult(resultId: string, questionName: string): void {
+    this.reportWarningOnUsingService();
   }
   /**
-   * Loads a survey JSON schema from the [SurveyJS Service](https://api.surveyjs.io). You can handle the [`onLoadedSurveyFromService`](#onLoadedSurveyFromService) event to modify the schema after loading if required.
-   * @param surveyId The identifier of a survey JSON schema to load. Refer to the following help topic for more information: [Store Survey Results in the SurveyJS Service](https://surveyjs.io/form-library/documentation/handle-survey-results-store#store-survey-results-in-the-surveyjs-service).
-   * @param clientId A user identifier (e-mail or other unique ID) used to determine whether the user has already taken the survey.
+   * @deprecated Self-hosted Form Library [no longer supports integration with SurveyJS Demo Service](https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service).
    */
-  public loadSurveyFromService(
-    surveyId: string = null,
-    clientId: string = null
-  ) {
+  public loadSurveyFromService(surveyId: string = null, clientId: string = null): void {
     if (surveyId) {
       this.surveyId = surveyId;
     }
     if (clientId) {
       this.clientId = clientId;
     }
-    var self = this;
-    this.isLoading = true;
-    this.onLoadingSurveyFromService();
-    if (clientId) {
-      this.createSurveyService().getSurveyJsonAndIsCompleted(
-        this.surveyId,
-        this.clientId,
-        function (
-          success: boolean,
-          json: string,
-          isCompleted: string,
-          response: any
-        ) {
-          if (success) {
-            self.isCompletedBefore = isCompleted == "completed";
-            self.loadSurveyFromServiceJson(json);
-          }
-          self.isLoading = false;
-        }
-      );
-    } else {
-      this.createSurveyService().loadSurvey(this.surveyId, function (
-        success: boolean,
-        result: string,
-        response: any
-      ) {
-        if (success) {
-          self.loadSurveyFromServiceJson(result);
-        }
-        self.isLoading = false;
-      });
-    }
+    this.reportWarningOnUsingService();
+  }
+  private reportWarningOnUsingService(): void {
+    ConsoleWarnings.warn("Self-hosted Form Library no longer supports integration with SurveyJS Demo Service. Learn more: https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service");
   }
   private loadSurveyFromServiceJson(json: any) {
     if (!json) return;
@@ -6617,6 +6509,7 @@ export class SurveyModel extends SurveyElementCore
       this.jsonErrors = jsonConverter.errors;
     }
     this.onStateAndCurrentPageChanged();
+    this.endLoading();
     this.updateState();
     if(!!this.sjsVersion && !!settings.version) {
       if(Helpers.compareVerions(this.sjsVersion, settings.version) > 0) {
diff --git a/packages/survey-core/tests/entries/test.ts b/packages/survey-core/tests/entries/test.ts
index 36068b3e4e..60fd734340 100644
--- a/packages/survey-core/tests/entries/test.ts
+++ b/packages/survey-core/tests/entries/test.ts
@@ -17,7 +17,6 @@ export * from "../question_matrixdropdownbasetests";
 export * from "../question_paneldynamic_tests";
 export * from "../surveyserializationtests"; //
 export * from "../surveytests"; //
-export * from "../surveyServiceTests"; //
 export * from "../surveyWindowTests"; //
 export * from "../surveywidthmodetests"; //
 export * from "../surveytriggertests"; //
@@ -79,6 +78,7 @@ export * from "../mask/mask_settings_tests";
 export * from "../mask/multipletext_mask_settings_tests";
 export * from "../headerTests";
 export * from "../layout_tests";
+export * from "../surveyServiceRemovingTests";
 
 // localization
 import "../../src/localization/russian";
diff --git a/packages/survey-core/tests/surveyServiceRemovingTests.ts b/packages/survey-core/tests/surveyServiceRemovingTests.ts
new file mode 100644
index 0000000000..c663c64061
--- /dev/null
+++ b/packages/survey-core/tests/surveyServiceRemovingTests.ts
@@ -0,0 +1,64 @@
+import { ConsoleWarnings } from "../src/console-warnings";
+import { SurveyModel } from "../src/survey";
+
+export default QUnit.module("SurveySerialization");
+
+const errorText = "Self-hosted Form Library no longer supports integration with SurveyJS Demo Service. Learn more: https://surveyjs.io/stay-updated/release-notes/v2.0.0#form-library-removes-apis-for-integration-with-surveyjs-demo-service";
+
+QUnit.test("survey.beginLoading()/survey.endLoading()", function (assert) {
+  const survey = new SurveyModel();
+  assert.equal(survey.state, "empty", "state #1");
+  survey.beginLoading();
+  assert.equal(survey.state, "loading", "state #2");
+  survey.endLoading();
+  assert.equal(survey.state, "empty", "state #3");
+  survey.beginLoading();
+  assert.equal(survey.state, "loading", "state #4");
+  survey.fromJSON({ elements: [{ type: "text", name: "q1" }] });
+  assert.equal(survey.state, "running", "state #5");
+});
+QUnit.test("Show warning in console on loading survey", function(assert) {
+  const prev = ConsoleWarnings.warn;
+  let reportText: string = "";
+  ConsoleWarnings.warn = (text: string) => {
+    reportText = text;
+  };
+  let survey = new SurveyModel({ surveyId: "abcde" });
+
+  assert.equal(survey.state, "empty", "state #1");
+  assert.equal(reportText, errorText, "Error on loading, #1");
+  reportText = "";
+  survey.loadSurveyFromService("abcde");
+  assert.equal(reportText, errorText, "Error on loading, #2");
+
+  ConsoleWarnings.warn = prev;
+});
+QUnit.test("Show warning in console on loading survey", function(assert) {
+  const prev = ConsoleWarnings.warn;
+  let reportText: string = "";
+  ConsoleWarnings.warn = (text: string) => {
+    reportText = text;
+  };
+  let survey = new SurveyModel({ surveyPostId: "abcde", elements: [{ type: "text", name: "q1", defaultValue: 1 }] });
+
+  assert.equal(survey.state, "running", "state #1");
+  survey.doComplete();
+  assert.equal(survey.state, "completed", "state #2");
+  assert.equal(reportText, errorText, "Error on loading, #1");
+
+  ConsoleWarnings.warn = prev;
+});
+QUnit.test("Show warning in console on sendResult/getResult", function(assert) {
+  const prev = ConsoleWarnings.warn;
+  let reportText: string = "";
+  ConsoleWarnings.warn = (text: string) => {
+    reportText = text;
+  };
+  let survey = new SurveyModel();
+  survey.sendResult("abcde");
+  assert.equal(reportText, errorText, "Error on sendResult, #1");
+  reportText = "";
+  survey.getResult("abcde", "q1");
+  assert.equal(reportText, errorText, "Error on getResult, #2");
+  ConsoleWarnings.warn = prev;
+});
diff --git a/packages/survey-core/tests/surveyServiceTests.ts b/packages/survey-core/tests/surveyServiceTests.ts
deleted file mode 100644
index eb55673e5f..0000000000
--- a/packages/survey-core/tests/surveyServiceTests.ts
+++ /dev/null
@@ -1,95 +0,0 @@
-import { SurveyModel } from "../src/survey";
-import { dxSurveyService } from "../src/dxSurveyService";
-
-export default QUnit.module("SurveyServiceTests");
-
-class SurveyServiceTester extends dxSurveyService {
-  private onSendResult: any;
-  public doSendResult(success: boolean, response: any, request?: any): void {
-    if(!!this.onSendResult) {
-      this.onSendResult(success, response, request);
-      this.onSendResult = undefined;
-    }
-  }
-  public get isSavingData(): boolean {
-    return !!this.onSendResult;
-  }
-  protected sendResultCore(postId: string, result: JSON,
-    onSendResult: (success: boolean, response: any, request?: any) => void,
-    clientId: string = null, isPartialCompleted: boolean = false): void {
-    this.onSendResult = onSendResult;
-  }
-}
-
-class SurveyModelTester extends SurveyModel {
-  public serviceTester: SurveyServiceTester;
-  public notiferList: Array<any> = [];
-  constructor(jsonObj: any = null) {
-    super(jsonObj);
-  }
-  protected createSurveyService(): dxSurveyService {
-    this.serviceTester = new SurveyServiceTester();
-    return this.serviceTester;
-  }
-  public notify(message: string, type: string, showActions: boolean = false): void {
-    this.notiferList.push({ message: message, type: type, showActions: showActions });
-  }
-}
-
-QUnit.test("Always show data saving for surveyjs io service, no errors", function(assert) {
-  const json = {
-    surveyPostId: "abc",
-    elements: [{ type: "comment", name: "q1", defaultValue: 1 }]
-  };
-  const survey = new SurveyModelTester(json);
-  survey.getQuestionByName("q1").value = "0123456789";
-  survey.doComplete();
-  assert.equal(survey.serviceTester.isSavingData, true, "The data is saving");
-  assert.equal(survey.serviceTester.isSurveJSIOService, true, "We are saving data into the surveyjs service");
-  assert.equal(survey.completedStateText, "The results are being saved on the server...", "do saving #1");
-  assert.equal(survey.notiferList.length, 1, "notiferList.length #1");
-  assert.equal(survey.notiferList[0].type, "saving", "notiferList[0].type #1");
-  survey.serviceTester.doSendResult(true, "", "");
-  assert.equal(survey.completedStateText, "The results were saved successfully!", "do saving #2");
-  assert.equal(survey.notiferList.length, 2, "notiferList.length #2");
-  assert.equal(survey.notiferList[1].type, "success", "notiferList[1].type #2");
-});
-QUnit.test("Always show data saving for surveyjs io service, with errors", function(assert) {
-  const json = {
-    surveyPostId: "abc",
-    elements: [{ type: "comment", name: "q1" }]
-  };
-  const survey = new SurveyModelTester(json);
-  survey.getQuestionByName("q1").value = "0123456789";
-  survey.doComplete();
-  assert.equal(survey.serviceTester.isSavingData, true, "The data is saving");
-  assert.equal(survey.serviceTester.isSurveJSIOService, true, "We are saving data into the surveyjs service");
-  assert.equal(survey.completedStateText, "The results are being saved on the server...", "do saving #1");
-  assert.equal(survey.notiferList.length, 1, "notiferList.length #1");
-  assert.equal(survey.notiferList[0].type, "saving", "notiferList[0].type #1");
-  survey.serviceTester.doSendResult(false, "We have an error on the server", "");
-  assert.equal(survey.completedStateText, "We have an error on the server", "do saving #2");
-  assert.equal(survey.notiferList.length, 2, "notiferList.length #2");
-  assert.equal(survey.notiferList[1].type, "error", "notiferList[1].type #2");
-});
-QUnit.test("Try to save a lot of data into the service", function(assert) {
-  const json = {
-    surveyPostId: "abc",
-    elements: [{ type: "comment", name: "q1" }]
-  };
-  const survey = new SurveyModelTester(json);
-  let largeVal = "";
-  for(let i = 0; i < 6556; i ++) {
-    largeVal += "0123456789";
-  }
-  survey.getQuestionByName("q1").value = largeVal;
-  survey.doComplete();
-  const errorText = "Your response exceeds 64KB. Please reduce the size of your file(s) and try again or contact the survey owner.";
-  assert.equal(survey.serviceTester.isSurveJSIOService, true, "We are saving data into the surveyjs service");
-  assert.equal(survey.serviceTester.isSavingData, false, "The data is not saving. We got an error stright away");
-  assert.equal(survey.completedStateText, errorText, "try to save");
-  assert.equal(survey.notiferList.length, 2, "notiferList.length");
-  assert.equal(survey.notiferList[0].type, "saving", "notiferList[0].type");
-  assert.equal(survey.notiferList[1].type, "error", "notiferList[1].type");
-  assert.equal(survey.notiferList[1].message, errorText, "notiferList[1].type");
-});
diff --git a/packages/survey-core/tests/surveytests.ts b/packages/survey-core/tests/surveytests.ts
index ae02f69c36..ec98678194 100644
--- a/packages/survey-core/tests/surveytests.ts
+++ b/packages/survey-core/tests/surveytests.ts
@@ -41,7 +41,6 @@ import { QuestionMatrixDynamicModel } from "../src/question_matrixdynamic";
 import { QuestionRatingModel } from "../src/question_rating";
 import { CustomWidgetCollection } from "../src/questionCustomWidgets";
 import { surveyCss } from "../src/defaultCss/defaultCss";
-import { dxSurveyService } from "../src/dxSurveyService";
 import { FunctionFactory } from "../src/functionsfactory";
 import { QuestionExpressionModel } from "../src/question_expression";
 import { QuestionPanelDynamicModel } from "../src/question_paneldynamic";
@@ -6661,90 +6660,6 @@ QUnit.test("Clear value if empty array is set, Bug #608", function (assert) {
   assert.deepEqual(survey.data, {}, "The value with empty array is removed");
 });
 
-QUnit.test("surveyId + clientId", function (assert) {
-  var json = { questions: [{ type: "text", name: "q1" }] };
-  class dxSurveyServiceTester extends dxSurveyService {
-    public getSurveyJsonAndIsCompleted(
-      surveyId: string,
-      clientId: string,
-      onLoad: (
-        success: boolean,
-        surveyJson: any,
-        result: string,
-        response: any
-      ) => void
-    ) {
-      if (onLoad) {
-        onLoad(true, json, clientId, "");
-      }
-    }
-  }
-  class SurveyTester extends SurveyModel {
-    protected createSurveyService(): dxSurveyService {
-      return new dxSurveyServiceTester();
-    }
-  }
-  var survey = new SurveyTester({ surveyId: "surveyDummyId", clientId: "no" });
-  assert.equal(survey.state, "running", "The survey is running");
-  var q1 = survey.getQuestionByName("q1");
-  assert.equal(q1.name, "q1", "The survey created from the string");
-
-  survey = new SurveyTester({
-    surveyId: "surveyDummyId",
-    clientId: "completed",
-  });
-  assert.equal(
-    survey.state,
-    "completedbefore",
-    "The survey was completed before"
-  );
-  var q1 = survey.getQuestionByName("q1");
-  assert.equal(q1.name, "q1", "The survey created from the string");
-});
-
-QUnit.test("surveyId + clientId several page render", function (assert) {
-  let log = "";
-  let curState = "";
-  const json = { questions: [{ type: "text", name: "q1" }] };
-  class dxSurveyServiceTester extends dxSurveyService {
-    public getSurveyJsonAndIsCompleted(surveyId: string, clientId: string, onLoad: (success: boolean, surveyJson: any, result: string, response: any) => void) {
-      if (onLoad) {
-        onLoad(true, json, clientId, "");
-      }
-    }
-  }
-  class SurveyTester extends SurveyModel {
-    protected createSurveyService(): dxSurveyService {
-      return new dxSurveyServiceTester();
-    }
-    protected propertyValueChanged(name: string, oldValue: any, newValue: any, arrayChanges?: ArrayChanges, target?: Base): void {
-      super.propertyValueChanged(name, oldValue, newValue, arrayChanges);
-      if (name === "isLoading" || name === "state" || name === "activePage") {
-        log += ("-> " + name + ":" + newValue);
-      }
-    }
-    protected onLoadSurveyFromService(): void {
-      super.onLoadSurveyFromService();
-      curState = this.state;
-      assert.equal(curState, "loading");
-    }
-    protected setPropertyValueDirectly(name: string, val: any): void {
-      if (name === "activePage" && !!val) {
-        assert.ok(this.activePage === undefined, "this.activePage undefined");
-        assert.ok(!!val, "new activePage");
-      }
-      super.setPropertyValueDirectly(name, val);
-    }
-  }
-
-  let survey = new SurveyTester({ surveyId: "surveyDummyId", clientId: "completed" });
-  assert.equal(survey.state, "completedbefore", "The survey is running");
-  assert.equal(log, "-> state:empty-> state:loading-> isLoading:true-> activePage:page1-> state:completedbefore-> isLoading:false");
-
-  let q1 = survey.getQuestionByName("q1");
-  assert.equal(q1.name, "q1", "The survey created from the string");
-});
-
 QUnit.test(
   "Question description and text processing, variable, Bug #632",
   function (assert) {
@@ -21511,4 +21426,4 @@ QUnit.test("Show warning on loadig JSON created in higher version of Creator", f
   checkFunc("2.0.3", "2.0.2", true);
   ConsoleWarnings.warn = prevWarn;
   settings.version = oldVersion;
-});
+});
\ No newline at end of file