diff --git a/docs/en/UI/Angular/Toaster-Service.md b/docs/en/UI/Angular/Toaster-Service.md
index d2c1fc08f3..4778af020b 100644
--- a/docs/en/UI/Angular/Toaster-Service.md
+++ b/docs/en/UI/Angular/Toaster-Service.md
@@ -85,7 +85,103 @@ The all open toasts can be removed manually via the `clear` method:
 ```js
 this.toaster.clear();
 ```
+## Replacing ToasterService with 3rd party toaster libraries
 
+If you want the ABP Framework to utilize 3rd party libraries for the toasters instead of the built-in one, you can provide a service that implements `Toaster.Service` interface, and provide it as follows (ngx-toastr library used in example):
+
+> You can use *LocalizationService* for toaster messages translations. 
+```js
+// your-custom-toaster.service.ts
+import { Injectable } from '@angular/core';
+import { Config, LocalizationService } from '@abp/ng.core';
+import { Toaster } from '@abp/ng.theme.shared';
+import { ToastrService } from 'ngx-toastr';
+
+@Injectable()
+export class CustomToasterService implements Toaster.Service {
+  constructor(private toastr: ToastrService, private localizationService: LocalizationService) {}
+
+  error(
+    message: Config.LocalizationParam,
+    title?: Config.LocalizationParam,
+    options?: Partial<Toaster.ToastOptions>,
+  ) {
+    return this.show(message, title, 'error', options);
+  }
+
+  clear(): void {
+    this.toastr.clear();
+  }
+
+  info(
+    message: Config.LocalizationParam,
+    title: Config.LocalizationParam | undefined,
+    options: Partial<Toaster.ToastOptions> | undefined,
+  ): Toaster.ToasterId {
+    return this.show(message, title, 'info', options);
+  }
+
+  remove(id: number): void {
+    this.toastr.remove(id);
+  }
+
+  show(
+    message: Config.LocalizationParam,
+    title: Config.LocalizationParam,
+    severity: Toaster.Severity,
+    options: Partial<Toaster.ToastOptions>,
+  ): Toaster.ToasterId {
+    const translatedMessage = this.localizationService.instant(message);
+    const translatedTitle = this.localizationService.instant(title);
+    const toasterOptions = {
+      positionClass: 'toast-bottom-right',
+      tapToDismiss: options.tapToDismiss,
+      ...(options.sticky && {
+        extendedTimeOut: 0,
+        timeOut: 0,
+      }),
+    };
+    const activeToast = this.toastr.show(
+      translatedMessage,
+      translatedTitle,
+      toasterOptions,
+      `toast-${severity}`,
+    );
+    return activeToast.toastId;
+  }
+
+  success(
+    message: Config.LocalizationParam,
+    title: Config.LocalizationParam | undefined,
+    options: Partial<Toaster.ToastOptions> | undefined,
+  ): Toaster.ToasterId {
+    return this.show(message, title, 'success', options);
+  }
+
+  warn(
+    message: Config.LocalizationParam,
+    title: Config.LocalizationParam | undefined,
+    options: Partial<Toaster.ToastOptions> | undefined,
+  ): Toaster.ToasterId {
+    return this.show(message, title, 'warning', options);
+  }
+}
+```
+```js
+// app.module.ts
+
+import { ToasterService } from '@abp/ng.theme.shared';
+
+@NgModule({
+  providers: [
+      // ...
+      {
+        provide: ToasterService,
+        useClass: CustomToasterService,
+      },  
+  ]
+})
+```
 ## API
 
 ### success
diff --git a/npm/ng-packs/packages/core/src/lib/models/utility.ts b/npm/ng-packs/packages/core/src/lib/models/utility.ts
index 228cab0de3..f1cfbdb6da 100644
--- a/npm/ng-packs/packages/core/src/lib/models/utility.ts
+++ b/npm/ng-packs/packages/core/src/lib/models/utility.ts
@@ -11,3 +11,7 @@ type Serializable = Record<
 
 export type InferredInstanceOf<T> = T extends Type<infer U> ? U : never;
 export type InferredContextOf<T> = T extends TemplateRef<infer U> ? U : never;
+
+export type Strict<Class, Contract> = Class extends Contract
+  ? { [K in keyof Class]: K extends keyof Contract ? Contract[K] : never }
+  : Contract;
diff --git a/npm/ng-packs/packages/theme-basic/src/lib/components/account-layout/account-layout.component.ts b/npm/ng-packs/packages/theme-basic/src/lib/components/account-layout/account-layout.component.ts
index 105c756e54..56851c6d27 100644
--- a/npm/ng-packs/packages/theme-basic/src/lib/components/account-layout/account-layout.component.ts
+++ b/npm/ng-packs/packages/theme-basic/src/lib/components/account-layout/account-layout.component.ts
@@ -6,7 +6,6 @@ import { eLayoutType } from '@abp/ng.core';
   template: `
     <router-outlet></router-outlet>
     <abp-confirmation></abp-confirmation>
-    <abp-toast-container right="30px" bottom="30px"></abp-toast-container>
   `,
 })
 export class AccountLayoutComponent {
diff --git a/npm/ng-packs/packages/theme-basic/src/lib/components/empty-layout/empty-layout.component.ts b/npm/ng-packs/packages/theme-basic/src/lib/components/empty-layout/empty-layout.component.ts
index 4f1dac52ca..f961ecc321 100644
--- a/npm/ng-packs/packages/theme-basic/src/lib/components/empty-layout/empty-layout.component.ts
+++ b/npm/ng-packs/packages/theme-basic/src/lib/components/empty-layout/empty-layout.component.ts
@@ -6,7 +6,6 @@ import { eLayoutType } from '@abp/ng.core';
   template: `
     <router-outlet></router-outlet>
     <abp-confirmation></abp-confirmation>
-    <abp-toast-container right="30px" bottom="30px"></abp-toast-container>
   `,
 })
 export class EmptyLayoutComponent {
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/models/toaster.ts b/npm/ng-packs/packages/theme-shared/src/lib/models/toaster.ts
index 7addf08162..beb5d4fc6c 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/models/toaster.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/models/toaster.ts
@@ -30,7 +30,7 @@ export namespace Toaster {
       options: Partial<Toaster.ToastOptions>,
     ) => ToasterId;
     remove: (id: number) => void;
-    clear: (key?: string) => void;
+    clear: (containerKey?: string) => void;
     info: (
       message: Config.LocalizationParam,
       title?: Config.LocalizationParam,
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/services/toaster.service.ts b/npm/ng-packs/packages/theme-shared/src/lib/services/toaster.service.ts
index 83f6655371..84275a0fc8 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/services/toaster.service.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/services/toaster.service.ts
@@ -1,15 +1,15 @@
 import { ComponentRef, Injectable } from '@angular/core';
 import { Toaster } from '../models';
 import { ReplaySubject } from 'rxjs';
-import { Config, ContentProjectionService, PROJECTION_STRATEGY } from '@abp/ng.core';
+import { Config, ContentProjectionService, PROJECTION_STRATEGY, Strict } from '@abp/ng.core';
 import snq from 'snq';
 import { ToastContainerComponent } from '../components/toast-container/toast-container.component';
 
 @Injectable({
   providedIn: 'root',
 })
-export class ToasterService implements Toaster.Service {
-  toasts$ = new ReplaySubject<Toaster.Toast[]>(1);
+export class ToasterService implements ToasterContract {
+  private toasts$ = new ReplaySubject<Toaster.Toast[]>(1);
 
   private lastId = -1;
 
@@ -37,7 +37,7 @@ export class ToasterService implements Toaster.Service {
     message: Config.LocalizationParam,
     title?: Config.LocalizationParam,
     options?: Partial<Toaster.ToastOptions>,
-  ): number {
+  ): Toaster.ToasterId {
     return this.show(message, title, 'info', options);
   }
 
@@ -51,7 +51,7 @@ export class ToasterService implements Toaster.Service {
     message: Config.LocalizationParam,
     title?: Config.LocalizationParam,
     options?: Partial<Toaster.ToastOptions>,
-  ): number {
+  ): Toaster.ToasterId {
     return this.show(message, title, 'success', options);
   }
 
@@ -65,7 +65,7 @@ export class ToasterService implements Toaster.Service {
     message: Config.LocalizationParam,
     title?: Config.LocalizationParam,
     options?: Partial<Toaster.ToastOptions>,
-  ): number {
+  ): Toaster.ToasterId {
     return this.show(message, title, 'warning', options);
   }
 
@@ -79,7 +79,7 @@ export class ToasterService implements Toaster.Service {
     message: Config.LocalizationParam,
     title?: Config.LocalizationParam,
     options?: Partial<Toaster.ToastOptions>,
-  ): number {
+  ): Toaster.ToasterId {
     return this.show(message, title, 'error', options);
   }
 
@@ -96,7 +96,7 @@ export class ToasterService implements Toaster.Service {
     title: Config.LocalizationParam = null,
     severity: Toaster.Severity = 'neutral',
     options = {} as Partial<Toaster.ToastOptions>,
-  ): number {
+  ): Toaster.ToasterId {
     if (!this.containerComponentRef) this.setContainer();
 
     const id = ++this.lastId;
@@ -122,10 +122,12 @@ export class ToasterService implements Toaster.Service {
   /**
    * Removes all open toasts at once.
    */
-  clear(key?: string): void {
-    this.toasts = !key
+  clear(containerKey?: string): void {
+    this.toasts = !containerKey
       ? []
-      : this.toasts.filter(toast => snq(() => toast.options.containerKey) !== key);
+      : this.toasts.filter(toast => snq(() => toast.options.containerKey) !== containerKey);
     this.toasts$.next(this.toasts);
   }
 }
+
+export type ToasterContract = Strict<ToasterService, Toaster.Service>;
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/tests/toaster.service.spec.ts b/npm/ng-packs/packages/theme-shared/src/lib/tests/toaster.service.spec.ts
index 0807bf632e..d47e4a7cf5 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/tests/toaster.service.spec.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/tests/toaster.service.spec.ts
@@ -14,6 +14,7 @@ import { ToasterService } from '../services/toaster.service';
   imports: [CoreModule.forTest()],
 })
 export class MockModule {}
+const toastClassPrefix = 'abp-toast';
 
 describe('ToasterService', () => {
   let spectator: SpectatorService<ToasterService>;
@@ -39,24 +40,23 @@ describe('ToasterService', () => {
     service['containerComponentRef'].changeDetectorRef.detectChanges();
 
     expect(selectToasterElement('.fa-exclamation-circle')).toBeTruthy();
-    expect(selectToasterContent('.toast-title')).toBe('TITLE');
-    expect(selectToasterContent('.toast-message')).toBe('MESSAGE');
+    expect(selectToasterContent(`.${toastClassPrefix}-title`)).toBe('TITLE');
+    expect(selectToasterContent(`.${toastClassPrefix}-message`)).toBe('MESSAGE');
   });
 
   test.each`
-    type         | selector            | icon
-    ${'info'}    | ${'.toast-info'}    | ${'.fa-info-circle'}
-    ${'success'} | ${'.toast-success'} | ${'.fa-check-circle'}
-    ${'warn'}    | ${'.toast-warning'} | ${'.fa-exclamation-triangle'}
-    ${'error'}   | ${'.toast-error'}   | ${'.fa-times-circle'}
+    type         | selector                          | icon
+    ${'info'}    | ${`.${toastClassPrefix}-info`}    | ${'.fa-info-circle'}
+    ${'success'} | ${`.${toastClassPrefix}-success`} | ${'.fa-check-circle'}
+    ${'warn'}    | ${`.${toastClassPrefix}-warning`} | ${'.fa-exclamation-triangle'}
+    ${'error'}   | ${`.${toastClassPrefix}-error`}   | ${'.fa-times-circle'}
   `('should display $type toast', async ({ type, selector, icon }) => {
     service[type]('MESSAGE', 'TITLE');
 
     await timer(0).toPromise();
     service['containerComponentRef'].changeDetectorRef.detectChanges();
-
-    expect(selectToasterContent('.toast-title')).toBe('TITLE');
-    expect(selectToasterContent('.toast-message')).toBe('MESSAGE');
+    expect(selectToasterContent(`.${toastClassPrefix}-title`)).toBe('TITLE');
+    expect(selectToasterContent(`.${toastClassPrefix}-message`)).toBe('MESSAGE');
     expect(selectToasterElement()).toBe(document.querySelector(selector));
     expect(selectToasterElement(icon)).toBeTruthy();
   });
@@ -68,10 +68,10 @@ describe('ToasterService', () => {
     await timer(0).toPromise();
     service['containerComponentRef'].changeDetectorRef.detectChanges();
 
-    const titles = document.querySelectorAll('.toast-title');
+    const titles = document.querySelectorAll(`.${toastClassPrefix}-title`);
     expect(titles.length).toBe(2);
 
-    const messages = document.querySelectorAll('.toast-message');
+    const messages = document.querySelectorAll(`.${toastClassPrefix}-message`);
     expect(messages.length).toBe(2);
   });
 
@@ -104,19 +104,19 @@ describe('ToasterService', () => {
     service['containerComponentRef'].changeDetectorRef.detectChanges();
 
     expect(selectToasterElement('.fa-exclamation-circle')).toBeTruthy();
-    expect(selectToasterContent('.toast-title')).toBe('TITLE_2');
-    expect(selectToasterContent('.toast-message')).toBe('MESSAGE_2');
+    expect(selectToasterContent(`.${toastClassPrefix}-title`)).toBe('TITLE_2');
+    expect(selectToasterContent(`.${toastClassPrefix}-message`)).toBe('MESSAGE_2');
   });
 });
 
-function clearElements(selector = '.toast') {
+function clearElements(selector = `.${toastClassPrefix}`) {
   document.querySelectorAll(selector).forEach(element => element.parentNode.removeChild(element));
 }
 
-function selectToasterContent(selector = '.toast'): string {
+function selectToasterContent(selector = `.${toastClassPrefix}`): string {
   return selectToasterElement(selector).textContent.trim();
 }
 
-function selectToasterElement<T extends HTMLElement>(selector = '.toast'): T {
+function selectToasterElement<T extends HTMLElement>(selector = `.${toastClassPrefix}`): T {
   return document.querySelector(selector);
 }
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/theme-shared.module.ts b/npm/ng-packs/packages/theme-shared/src/lib/theme-shared.module.ts
index 2ba44dfa7a..c4647cbcd1 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/theme-shared.module.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/theme-shared.module.ts
@@ -22,6 +22,7 @@ import { LoadingDirective } from './directives/loading.directive';
 import { NgxDatatableDefaultDirective } from './directives/ngx-datatable-default.directive';
 import { NgxDatatableListDirective } from './directives/ngx-datatable-list.directive';
 import { TableSortDirective } from './directives/table-sort.directive';
+import { ErrorHandler } from './handlers/error.handler';
 import { initLazyStyleHandler } from './handlers/lazy-style.handler';
 import { RootParams } from './models/common';
 import { THEME_SHARED_ROUTE_PROVIDERS } from './providers/route.provider';
@@ -68,6 +69,8 @@ const declarationsWithExports = [
   ],
 })
 export class ThemeSharedModule {
+  constructor(private errorHandler: ErrorHandler) {}
+
   static forRoot(options = {} as RootParams): ModuleWithProviders<ThemeSharedModule> {
     return {
       ngModule: ThemeSharedModule,