diff --git a/docs/en/UI/Angular/Toaster-Service.md b/docs/en/UI/Angular/Toaster-Service.md
index 3152eba1af..1dcb1b0153 100644
--- a/docs/en/UI/Angular/Toaster-Service.md
+++ b/docs/en/UI/Angular/Toaster-Service.md
@@ -47,7 +47,8 @@ const options: Partial<Toaster.ToastOptions> = {
     closable: true,
     tapToDismiss: true,
     messageLocalizationParams: ['Demo', '1'],
-    titleLocalizationParams: []
+    titleLocalizationParams: [],
+    iconClass: 'custom-icon-name';
   };
 
   this.toaster.error('AbpUi::EntityNotFoundErrorMessage', 'AbpUi::Error', options);
@@ -60,6 +61,7 @@ const options: Partial<Toaster.ToastOptions> = {
 - `yesText` is the text of the confirmation button. A localization key or localization object can be passed. Default value is `AbpUi::Yes`.
 - `messageLocalizationParams` is the interpolation parameters for the localization of the message.
 - `titleLocalizationParams` is the interpolation parameters for the localization of the title.
+- `iconClass` is the CSS class assigned to the icon displayed on a toast overlay.
 
 With the options above, the toast overlay looks like this:
 
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/components/toast/toast.component.ts b/npm/ng-packs/packages/theme-shared/src/lib/components/toast/toast.component.ts
index fea028ebb6..4d842df02a 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/components/toast/toast.component.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/components/toast/toast.component.ts
@@ -17,6 +17,12 @@ export class ToastComponent implements OnInit {
   }
 
   get iconClass(): string {
+    const { iconClass } = this.toast.options || {};
+    
+    if (iconClass) {
+      return iconClass;
+    }
+
     switch (this.toast.severity) {
       case 'success':
         return 'fa-check-circle';
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 5b8d07f108..7aabb583a1 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
@@ -10,6 +10,7 @@ export namespace Toaster {
     titleLocalizationParams?: string[];
     id: any;
     containerKey?: string;
+    iconClass?: string;
   }
 
   export interface Toast {
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 4e1b2830c7..3493d9c12a 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
@@ -1,7 +1,7 @@
 import { CoreTestingModule } from '@abp/ng.core/testing';
 import { NgModule } from '@angular/core';
 import { createServiceFactory, SpectatorService } from '@ngneat/spectator/jest';
-import { timer } from 'rxjs';
+import { firstValueFrom, timer } from 'rxjs';
 import { ToastContainerComponent } from '../components/toast-container/toast-container.component';
 import { ToastComponent } from '../components/toast/toast.component';
 import { ToasterService } from '../services/toaster.service';
@@ -34,7 +34,7 @@ describe('ToasterService', () => {
   test('should display a toast', async () => {
     service.show('MESSAGE', 'TITLE');
 
-    await timer(0).toPromise();
+    await firstValueFrom(timer(0));
     service['containerComponentRef'].changeDetectorRef.detectChanges();
 
     expect(selectToasterElement('.fa-exclamation-circle')).toBeTruthy();
@@ -51,7 +51,7 @@ describe('ToasterService', () => {
   `('should display $type toast', async ({ type, selector, icon }) => {
     service[type]('MESSAGE', 'TITLE');
 
-    await timer(0).toPromise();
+    await firstValueFrom(timer(0));
     service['containerComponentRef'].changeDetectorRef.detectChanges();
     expect(selectToasterContent(`.${toastClassPrefix}-title`)).toBe('TITLE');
     expect(selectToasterContent(`.${toastClassPrefix}-message`)).toBe('MESSAGE');
@@ -63,7 +63,7 @@ describe('ToasterService', () => {
     service.show('MESSAGE_1', 'TITLE_1');
     service.show('MESSAGE_2', 'TITLE_2');
 
-    await timer(0).toPromise();
+    await firstValueFrom(timer(0));
     service['containerComponentRef'].changeDetectorRef.detectChanges();
 
     const titles = document.querySelectorAll(`.${toastClassPrefix}-title`);
@@ -77,7 +77,7 @@ describe('ToasterService', () => {
     service.show('MESSAGE');
     service.remove(0);
 
-    await timer(0).toPromise();
+    await firstValueFrom(timer(0));
     service['containerComponentRef'].changeDetectorRef.detectChanges();
 
     expect(selectToasterElement()).toBeNull();
@@ -87,7 +87,7 @@ describe('ToasterService', () => {
     service.show('MESSAGE');
     service.clear();
 
-    await timer(0).toPromise();
+    await firstValueFrom(timer(0));
     service['containerComponentRef'].changeDetectorRef.detectChanges();
 
     expect(selectToasterElement()).toBeNull();
@@ -98,13 +98,22 @@ describe('ToasterService', () => {
     service.show('MESSAGE_2', 'TITLE_2', 'neutral', { containerKey: 'y' });
     service.clear('x');
 
-    await timer(0).toPromise();
+    await firstValueFrom(timer(0));
     service['containerComponentRef'].changeDetectorRef.detectChanges();
 
     expect(selectToasterElement('.fa-exclamation-circle')).toBeTruthy();
     expect(selectToasterContent(`.${toastClassPrefix}-title`)).toBe('TITLE_2');
     expect(selectToasterContent(`.${toastClassPrefix}-message`)).toBe('MESSAGE_2');
   });
+
+  test('should display custom icon when iconClass is provided', async () => {
+    service.show('MESSAGE', 'TITLE', 'neutral', { iconClass: 'custom-icon' });
+
+    await firstValueFrom(timer(0));
+    service['containerComponentRef'].changeDetectorRef.detectChanges();
+
+    expect(selectToasterElement('.custom-icon')).toBeTruthy();
+  });
 });
 
 function clearElements(selector = `.${toastClassPrefix}`) {