diff --git a/projects/ngx-datatable/src/lib/components/datatable-configuration.ts b/projects/ngx-datatable/src/lib/components/datatable-configuration.ts
index 4040d230c..eccaad92d 100644
--- a/projects/ngx-datatable/src/lib/components/datatable-configuration.ts
+++ b/projects/ngx-datatable/src/lib/components/datatable-configuration.ts
@@ -1,11 +1,15 @@
 import { computed } from '@angular/core';
 
-import type { AllPartial, NgxDatatableConfig } from '../ngx-datatable.config';
+import type { NgxDatatableConfig } from '../ngx-datatable.config';
 import type { DatatableComponent } from './datatable.component';
 
+type AllRequired<T> = T extends (...args: any[]) => any
+  ? T
+  : { [K in keyof T]-?: AllRequired<NonNullable<T[K]>> };
+
 /** @internal */
 export class DatatableConfiguration {
-  readonly configuration = computed(() => {
+  readonly configuration = computed<AllRequired<NgxDatatableConfig>>(() => {
     const configuration = this.globalConfiguration;
 
     return {
@@ -49,6 +53,6 @@ export class DatatableConfiguration {
 
   constructor(
     private readonly datatable: DatatableComponent,
-    private readonly globalConfiguration: AllPartial<NgxDatatableConfig>
+    private readonly globalConfiguration: NgxDatatableConfig
   ) {}
 }
diff --git a/projects/ngx-datatable/src/lib/components/datatable.component.ts b/projects/ngx-datatable/src/lib/components/datatable.component.ts
index 1c2b8574d..46d8d4c68 100644
--- a/projects/ngx-datatable/src/lib/components/datatable.component.ts
+++ b/projects/ngx-datatable/src/lib/components/datatable.component.ts
@@ -30,7 +30,6 @@ import { Subscription } from 'rxjs';
 
 import { ScrollContainerDirective } from '../directives/scroll-container.directive';
 import {
-  AllPartial,
   NGX_DATATABLE_CONFIG,
   NgxDatatableConfig,
   NgxDatatableCssClasses,
@@ -132,10 +131,10 @@ export class DatatableComponent<TRow extends Row = any>
   private cd = inject(ChangeDetectorRef);
   element = inject<ElementRef<HTMLElement>>(ElementRef).nativeElement;
   rowDiffer: IterableDiffer<TRow | undefined> = inject(IterableDiffers).find([]).create();
-  private readonly globalConfiguration: AllPartial<NgxDatatableConfig> =
+  private readonly globalConfiguration: NgxDatatableConfig =
     inject(NGX_DATATABLE_CONFIG, { optional: true }) ??
     // This is the old injection token for backward compatibility.
-    inject<AllPartial<NgxDatatableConfig>>('configuration' as any, { optional: true }) ??
+    inject<NgxDatatableConfig>('configuration' as any, { optional: true }) ??
     {};
   readonly datatableConfiguration = new DatatableConfiguration(this, this.globalConfiguration);
   protected readonly configuration = this.datatableConfiguration.configuration;
diff --git a/projects/ngx-datatable/src/lib/ngx-datatable.config.ts b/projects/ngx-datatable/src/lib/ngx-datatable.config.ts
index b992d406d..f8551b6a0 100644
--- a/projects/ngx-datatable/src/lib/ngx-datatable.config.ts
+++ b/projects/ngx-datatable/src/lib/ngx-datatable.config.ts
@@ -3,72 +3,59 @@ import { InjectionToken, Provider } from '@angular/core';
 /** Interface for messages to override default table texts. */
 export interface NgxDatatableMessages {
   /** Message to show when the array is present but empty */
-  emptyMessage: string;
+  emptyMessage?: string;
   /** Footer total message */
-  totalMessage: string;
+  totalMessage?: string;
   /** Footer selected message */
-  selectedMessage: string;
+  selectedMessage?: string;
   /** Pager screen reader message for the first page button */
-  ariaFirstPageMessage: string;
+  ariaFirstPageMessage?: string;
   /**
    * Pager screen reader message for the n-th page button.
    * It will be rendered as: `{{ariaPageNMessage}} {{n}}`.
    */
-  ariaPageNMessage: string;
+  ariaPageNMessage?: string;
   /** Pager screen reader message for the previous page button */
-  ariaPreviousPageMessage: string;
+  ariaPreviousPageMessage?: string;
   /** Pager screen reader message for the next page button */
-  ariaNextPageMessage: string;
+  ariaNextPageMessage?: string;
   /** Pager screen reader message for the last page button */
-  ariaLastPageMessage: string;
+  ariaLastPageMessage?: string;
   /** Row checkbox aria label */
-  ariaRowCheckboxMessage: string;
+  ariaRowCheckboxMessage?: string;
   /** Header checkbox aria label */
-  ariaHeaderCheckboxMessage: string;
+  ariaHeaderCheckboxMessage?: string;
   /** Group header checkbox aria label */
-  ariaGroupHeaderCheckboxMessage: string;
+  ariaGroupHeaderCheckboxMessage?: string;
   /** Loading indicator aria label */
-  ariaLoadingMessage: string;
+  ariaLoadingMessage?: string;
 }
 
 /** CSS classes for icons that override the default table icons. */
 export interface NgxDatatableCssClasses {
-  sortAscending: string;
-  sortDescending: string;
-  sortUnset: string;
-  pagerLeftArrow: string;
-  pagerRightArrow: string;
-  pagerPrevious: string;
-  pagerNext: string;
-  treeStatusLoading: string;
-  treeStatusExpanded: string;
-  treeStatusCollapsed: string;
+  sortAscending?: string;
+  sortDescending?: string;
+  sortUnset?: string;
+  pagerLeftArrow?: string;
+  pagerRightArrow?: string;
+  pagerPrevious?: string;
+  pagerNext?: string;
+  treeStatusLoading?: string;
+  treeStatusExpanded?: string;
+  treeStatusCollapsed?: string;
 }
 
-/**
- * Interface definition for ngx-datatable global configuration
- */
+/** Interface definition for ngx-datatable global configuration. */
 export interface NgxDatatableConfig {
-  messages: NgxDatatableMessages;
-  cssClasses: NgxDatatableCssClasses;
-  headerHeight: number | 'auto';
-  footerHeight: number;
-  rowHeight: number | 'auto' | ((row: any) => number);
-  defaultColumnWidth: number;
+  messages?: NgxDatatableMessages;
+  cssClasses?: NgxDatatableCssClasses;
+  headerHeight?: number | 'auto';
+  footerHeight?: number;
+  rowHeight?: number | 'auto' | ((row: any) => number);
+  defaultColumnWidth?: number;
 }
 
-export const NGX_DATATABLE_CONFIG = new InjectionToken<AllPartial<NgxDatatableConfig>>(
-  'ngx-datatable.config'
-);
-
-/**
- * This makes all properties recursively optional.
- *
- * @internal
- */
-export type AllPartial<T> = T extends (...args: any[]) => any
-  ? T
-  : { [K in keyof T]?: AllPartial<T[K]> };
+export const NGX_DATATABLE_CONFIG = new InjectionToken<NgxDatatableConfig>('ngx-datatable.config');
 
 /**
  * Interface definition for INgxDatatableConfig global configuration.
@@ -82,7 +69,7 @@ export type INgxDatatableConfig = NgxDatatableConfig;
  *
  * @param overrides The overrides of the table configuration.
  */
-export const providedNgxDatatableConfig = (overrides: AllPartial<NgxDatatableConfig>): Provider => {
+export const providedNgxDatatableConfig = (overrides: NgxDatatableConfig): Provider => {
   return {
     provide: NGX_DATATABLE_CONFIG,
     useValue: overrides
diff --git a/projects/ngx-datatable/src/lib/ngx-datatable.module.ts b/projects/ngx-datatable/src/lib/ngx-datatable.module.ts
index cf2a05386..c342d5de3 100644
--- a/projects/ngx-datatable/src/lib/ngx-datatable.module.ts
+++ b/projects/ngx-datatable/src/lib/ngx-datatable.module.ts
@@ -19,7 +19,7 @@ import { DatatablePagerComponent } from './components/footer/pager.component';
 import { DatatableRowDetailTemplateDirective } from './components/row-detail/row-detail-template.directive';
 import { DatatableRowDetailDirective } from './components/row-detail/row-detail.directive';
 import { DisableRowDirective } from './directives/disable-row.directive';
-import { AllPartial, NgxDatatableConfig, providedNgxDatatableConfig } from './ngx-datatable.config';
+import { NgxDatatableConfig, providedNgxDatatableConfig } from './ngx-datatable.config';
 
 @NgModule({
   imports: [
@@ -63,12 +63,10 @@ import { AllPartial, NgxDatatableConfig, providedNgxDatatableConfig } from './ng
 })
 export class NgxDatatableModule {
   /**
-   * Configure global configuration via INgxDatatableConfig
+   * Configure global configuration via NgxDatatableConfig
    * @param configuration
    */
-  static forRoot(
-    configuration: AllPartial<NgxDatatableConfig>
-  ): ModuleWithProviders<NgxDatatableModule> {
+  static forRoot(configuration: NgxDatatableConfig): ModuleWithProviders<NgxDatatableModule> {
     return {
       ngModule: NgxDatatableModule,
       providers: [providedNgxDatatableConfig(configuration)]
diff --git a/projects/ngx-datatable/src/testing/datatable-configuration.mock.ts b/projects/ngx-datatable/src/testing/datatable-configuration.mock.ts
index b198d292f..31f7c2402 100644
--- a/projects/ngx-datatable/src/testing/datatable-configuration.mock.ts
+++ b/projects/ngx-datatable/src/testing/datatable-configuration.mock.ts
@@ -2,14 +2,14 @@ import { Provider, Signal, signal } from '@angular/core';
 
 import { DatatableConfiguration } from '../lib/components/datatable-configuration';
 import { DatatableComponent } from '../lib/components/datatable.component';
-import { AllPartial, NgxDatatableConfig } from '../lib/ngx-datatable.config';
+import { NgxDatatableConfig } from '../lib/ngx-datatable.config';
 
 export interface DatatableConfigurationOverrides {
   rowHeight?: Signal<NgxDatatableConfig['rowHeight']>;
   headerHeight?: Signal<NgxDatatableConfig['headerHeight']>;
   footerHeight?: Signal<NgxDatatableConfig['footerHeight']>;
-  cssClasses?: Signal<AllPartial<NgxDatatableConfig['cssClasses']>>;
-  messages?: Signal<AllPartial<NgxDatatableConfig['messages']>>;
+  cssClasses?: Signal<NgxDatatableConfig['cssClasses']>;
+  messages?: Signal<NgxDatatableConfig['messages']>;
 }
 
 export const provideDatatableConfigurationMock = (