diff --git a/npm/ng-packs/packages/theme-shared/extensions/src/lib/models/internal/object-extensions.ts b/npm/ng-packs/packages/theme-shared/extensions/src/lib/models/internal/object-extensions.ts
index 6a44e4e231..ab075737bc 100644
--- a/npm/ng-packs/packages/theme-shared/extensions/src/lib/models/internal/object-extensions.ts
+++ b/npm/ng-packs/packages/theme-shared/extensions/src/lib/models/internal/object-extensions.ts
@@ -3,37 +3,150 @@ import { EntityPropList } from '../entity-props';
 import { FormPropList } from '../form-props';
 import { PropContributorCallbacks } from '../props';
 
+export interface EntityExtensionDto {
+  properties: Record<string, ExtensionPropertyDto>;
+  configuration: Record<string, object>;
+}
+
+export interface ExtensionEnumDto {
+  fields: ExtensionEnumFieldDto[];
+  localizationResource?: string;
+  transformed?: any; // UI
+}
+
+export interface ExtensionEnumFieldDto {
+  name?: string;
+  value: any; // UI, was object
+}
+
+export interface ExtensionPropertyApiCreateDto {
+  isAvailable: boolean;
+}
+
+export interface ExtensionPropertyApiDto {
+  onGet: ExtensionPropertyApiGetDto;
+  onCreate: ExtensionPropertyApiCreateDto;
+  onUpdate: ExtensionPropertyApiUpdateDto;
+}
+
+export interface ExtensionPropertyApiGetDto {
+  isAvailable: boolean;
+}
+
+export interface ExtensionPropertyApiUpdateDto {
+  isAvailable: boolean;
+}
+
+export interface ExtensionPropertyAttributeDto {
+  typeSimple?: string;
+  config: Record<string, any>; // UI, was Record<string, object>
+}
+
+export interface ExtensionPropertyDto {
+  type?: string;
+  typeSimple?: ePropType; // UI, was string
+  displayName: LocalizableStringDto;
+  api: ExtensionPropertyApiDto;
+  ui: ExtensionPropertyUiDto;
+  attributes: ExtensionPropertyAttributeDto[];
+  configuration: Record<string, any>; // UI, was Record<string, object>;
+  defaultValue: any; // UI, was object
+}
+
+export interface ExtensionPropertyUiDto {
+  onTable: ExtensionPropertyUiTableDto;
+  onCreateForm: ExtensionPropertyUiFormDto;
+  onEditForm: ExtensionPropertyUiFormDto;
+  lookup: ExtensionPropertyUiLookupDto;
+}
+
+export interface ExtensionPropertyUiFormDto {
+  isVisible: boolean;
+}
+
+export interface ExtensionPropertyUiLookupDto {
+  url?: string;
+  resultListPropertyName?: string;
+  displayPropertyName?: string;
+  valuePropertyName?: string;
+  filterParamName?: string;
+}
+
+export interface ExtensionPropertyUiTableDto {
+  isSortable?: boolean; // UI
+  isVisible: boolean;
+}
+
+export interface LocalizableStringDto {
+  name?: string;
+  resource?: string;
+}
+
+export interface ModuleExtensionDto {
+  entities: Record<string, EntityExtensionDto>;
+  configuration: Record<string, object>;
+}
+
+export interface ObjectExtensionsDto {
+  modules: Record<string, ModuleExtensionDto>;
+  enums: Record<string, ExtensionEnumDto>;
+}
+
 export interface PropContributors<T = any> {
   prop: PropContributorCallbacks<EntityPropList<T>>;
   createForm: PropContributorCallbacks<FormPropList<T>>;
   editForm: PropContributorCallbacks<FormPropList<T>>;
 }
 
+/**
+ * @deprecated To be deleted in v4.2.
+ */
 export interface Config {
   objectExtensions: Item;
 }
 
+/**
+ * @deprecated Use ObjectExtensionsDto. To be deleted in v4.2.
+ */
 export interface Item {
   modules: Modules;
   enums: Enums;
 }
 
+/**
+ * @deprecated Use Record<string, ModuleExtensionDto>. To be deleted in v4.2.
+ */
 export type Modules = Configuration<Module>;
 
+/**
+ * @deprecated Use ModuleExtensionDto. To be deleted in v4.2.
+ */
 export interface Module {
   configuration: Configuration;
   entities: Entities;
 }
 
+/**
+ * @deprecated Use Record<string, EntityExtensionDto>. To be deleted in v4.2.
+ */
 export type Entities = Configuration<Entity>;
 
+/**
+ * @deprecated Use EntityExtensionDto. To be deleted in v4.2.
+ */
 export interface Entity {
   configuration: Configuration;
   properties: Properties;
 }
 
+/**
+ * @deprecated Use Record<string, ExtensionPropertyDto>. To be deleted in v4.2.
+ */
 export type Properties = Configuration<Property>;
 
+/**
+ * @deprecated Use ExtensionPropertyDto. To be deleted in v4.2.
+ */
 export interface Property {
   type: string;
   typeSimple: ePropType;
@@ -45,51 +158,84 @@ export interface Property {
   defaultValue?: any;
 }
 
+/**
+ * @deprecated Use LocalizableStringDto. To be deleted in v4.2.
+ */
 export interface DisplayName {
   name: string;
   resource: string;
 }
 
+/**
+ * @deprecated Use ExtensionPropertyApiDto. To be deleted in v4.2.
+ */
 export interface Api {
   onGet: ApiConfig;
   onCreate: ApiConfig;
   onUpdate: ApiConfig;
 }
 
+/**
+ * @deprecated Use ExtensionPropertyApiCreateDto. To be deleted in v4.2.
+ */
 export interface ApiConfig {
   isAvailable: boolean;
 }
 
+/**
+ * @deprecated Use ExtensionPropertyUiDto. To be deleted in v4.2.
+ */
 export interface Ui {
   onTable: UiPropConfig;
   onCreateForm: UiFormConfig;
   onEditForm: UiFormConfig;
 }
 
+/**
+ * @deprecated Use ExtensionPropertyUiTableDto. To be deleted in v4.2.
+ */
 export interface UiPropConfig {
   isSortable: boolean;
   isVisible: boolean;
 }
 
+/**
+ * @deprecated Use ExtensionPropertyUiFormDto. To be deleted in v4.2.
+ */
 export interface UiFormConfig {
   isVisible: boolean;
 }
 
+/**
+ * @deprecated Use ExtensionPropertyAttributeDto. To be deleted in v4.2.
+ */
 export interface Attribute {
   typeSimple: string;
   config: Configuration;
 }
 
+/**
+ * @deprecated To be deleted in v4.2.
+ */
 export type Configuration<T = any> = Record<string, T>;
 
+/**
+ * @deprecated Use Record<string, ExtensionEnumDto>. To be deleted in v4.2.
+ */
 export type Enums = Record<string, Enum>;
 
+/**
+ * @deprecated Use ExtensionEnumDto. To be deleted in v4.2.
+ */
 export interface Enum {
   fields: EnumMember[];
   localizationResource?: string;
   transformed?: any;
 }
 
+/**
+ * @deprecated Use ExtensionEnumFieldDto. To be deleted in v4.2.
+ */
 export interface EnumMember {
   name: string;
   value: any;
diff --git a/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/enum.util.ts b/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/enum.util.ts
index 6e9985d0f6..bb8da3694f 100644
--- a/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/enum.util.ts
+++ b/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/enum.util.ts
@@ -5,11 +5,11 @@ import { EXTRA_PROPERTIES_KEY } from '../constants/extra-properties';
 import { ObjectExtensions } from '../models/object-extensions';
 import { PropCallback } from '../models/props';
 
-export function createEnum(members: ObjectExtensions.EnumMember[]) {
+export function createEnum(members: ObjectExtensions.ExtensionEnumFieldDto[]) {
   const enumObject: any = {};
 
   members.forEach(({ name, value }) => {
-    enumObject[(enumObject[name] = value)] = name;
+    enumObject[(enumObject[name] = value as any)] = name;
   });
 
   return enumObject;
@@ -17,7 +17,7 @@ export function createEnum(members: ObjectExtensions.EnumMember[]) {
 
 export function createEnumValueResolver<T = any>(
   enumType: string,
-  lookupEnum: ObjectExtensions.Enum,
+  lookupEnum: ObjectExtensions.ExtensionEnumDto,
   propName: string,
 ): PropCallback<T, Observable<string>> {
   return data => {
@@ -32,7 +32,7 @@ export function createEnumValueResolver<T = any>(
 
 export function createEnumOptions<T = any>(
   enumType: string,
-  lookupEnum: ObjectExtensions.Enum,
+  lookupEnum: ObjectExtensions.ExtensionEnumDto,
 ): PropCallback<T, Observable<ABP.Option<any>[]>> {
   return data => {
     const l10n = data.getInjected(LocalizationService);
@@ -55,7 +55,7 @@ function createLocalizationStream(l10n: LocalizationService, mapTarget: any) {
 function createEnumLocalizer(
   l10n: LocalizationService,
   enumType: string,
-  lookupEnum: ObjectExtensions.Enum,
+  lookupEnum: ObjectExtensions.ExtensionEnumDto,
 ): (key: string) => string {
   const resource = lookupEnum.localizationResource;
   const shortType = getShortEnumType(enumType);
diff --git a/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/localization.util.ts b/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/localization.util.ts
index 72fed93dea..8cd4694d3b 100644
--- a/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/localization.util.ts
+++ b/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/localization.util.ts
@@ -6,7 +6,10 @@ export function createDisplayNameLocalizationPipeKeyGenerator(
 ) {
   const generateLocalizationPipeKey = createLocalizationPipeKeyGenerator(localization);
 
-  return (displayName: ObjectExtensions.DisplayName, fallback: ObjectExtensions.DisplayName) => {
+  return (
+    displayName: ObjectExtensions.LocalizableStringDto,
+    fallback: ObjectExtensions.LocalizableStringDto,
+  ) => {
     if (displayName && displayName.name)
       return generateLocalizationPipeKey(
         [displayName.resource],
diff --git a/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/state.util.ts b/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/state.util.ts
index 47f80c3fa1..6c122721e3 100644
--- a/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/state.util.ts
+++ b/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/state.util.ts
@@ -13,7 +13,7 @@ import { getValidatorsFromProperty } from './validation.util';
 
 function selectObjectExtensions(
   configState: ConfigStateService,
-): Observable<ObjectExtensions.Item> {
+): Observable<ObjectExtensions.ObjectExtensionsDto> {
   return configState.getOne$('objectExtensions');
 }
 
@@ -25,9 +25,9 @@ function selectLocalization(
 
 function selectEnums(
   configState: ConfigStateService,
-): Observable<Record<string, ObjectExtensions.Enum>> {
+): Observable<Record<string, ObjectExtensions.ExtensionEnumDto>> {
   return selectObjectExtensions(configState).pipe(
-    map((extensions: ObjectExtensions.Item) =>
+    map((extensions: ObjectExtensions.ObjectExtensionsDto) =>
       Object.keys(extensions.enums).reduce((acc, key) => {
         const { fields, localizationResource } = extensions.enums[key];
         acc[key] = {
@@ -36,23 +36,24 @@ function selectEnums(
           transformed: createEnum(fields),
         };
         return acc;
-      }, {} as ObjectExtensions.Enums),
+      }, {} as Record<string, ObjectExtensions.ExtensionEnumDto>),
     ),
   );
 }
 
 export function getObjectExtensionEntitiesFromStore(
   configState: ConfigStateService,
-  moduleKey: ModuleKey,
+  moduleKey: string,
 ) {
   return selectObjectExtensions(configState).pipe(
     map(extensions => {
       if (!extensions) return null;
 
-      return (extensions.modules[moduleKey] || ({} as ObjectExtensions.Module)).entities;
+      return (extensions.modules[moduleKey] || ({} as ObjectExtensions.ModuleExtensionDto))
+        .entities;
     }),
     map(entities => (isUndefined(entities) ? {} : entities)),
-    filter<ObjectExtensions.Entities>(Boolean),
+    filter<Entities>(Boolean),
     take(1),
   );
 }
@@ -68,12 +69,12 @@ export function mapEntitiesToContributors<T = any>(
           const generateDisplayName = createDisplayNameLocalizationPipeKeyGenerator(localization);
 
           return Object.keys(entities).reduce(
-            (acc, key: keyof ObjectExtensions.Entities) => {
+            (acc, key: keyof Entities) => {
               acc.prop[key] = [];
               acc.createForm[key] = [];
               acc.editForm[key] = [];
 
-              const entity: ObjectExtensions.Entity = entities[key];
+              const entity: ObjectExtensions.EntityExtensionDto = entities[key];
               if (!entity) return acc;
 
               const properties = entity.properties;
@@ -103,10 +104,10 @@ export function mapEntitiesToContributors<T = any>(
 function createPropertiesToContributorsMapper<T = any>(
   generateDisplayName: DisplayNameGeneratorFn,
   resource: string,
-  enums: Record<string, ObjectExtensions.Enum>,
+  enums: Record<string, ObjectExtensions.ExtensionEnumDto>,
 ) {
   return (
-    properties: Record<string, ObjectExtensions.Property>,
+    properties: Record<string, ObjectExtensions.ExtensionPropertyDto>,
     contributors: ObjectExtensions.PropContributors<T>,
     key: string,
   ) => {
@@ -169,7 +170,7 @@ function createPropertiesToContributorsMapper<T = any>(
   };
 }
 
-function getTypeFromProperty(property: ObjectExtensions.Property): ePropType {
+function getTypeFromProperty(property: ObjectExtensions.ExtensionPropertyDto): ePropType {
   return (property.typeSimple.replace(/\?$/, '') as string) as ePropType;
 }
 
@@ -178,4 +179,4 @@ function isUndefined(obj: any): obj is undefined {
 }
 
 type DisplayNameGeneratorFn = ReturnType<typeof createDisplayNameLocalizationPipeKeyGenerator>;
-type ModuleKey = keyof ObjectExtensions.Modules;
+type Entities = Record<string, ObjectExtensions.EntityExtensionDto>;
diff --git a/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/validation.util.ts b/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/validation.util.ts
index 26d546fbd3..d87c6c1260 100644
--- a/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/validation.util.ts
+++ b/npm/ng-packs/packages/theme-shared/extensions/src/lib/utils/validation.util.ts
@@ -2,7 +2,9 @@ import { AbpValidators } from '@abp/ng.core';
 import { ValidatorFn } from '@angular/forms';
 import { ObjectExtensions } from '../models/object-extensions';
 
-export function getValidatorsFromProperty(property: ObjectExtensions.Property): ValidatorFn[] {
+export function getValidatorsFromProperty(
+  property: ObjectExtensions.ExtensionPropertyDto,
+): ValidatorFn[] {
   const validators: ValidatorFn[] = [];
 
   property.attributes.forEach(attr => {
diff --git a/npm/ng-packs/packages/theme-shared/extensions/src/tests/enum.util.spec.ts b/npm/ng-packs/packages/theme-shared/extensions/src/tests/enum.util.spec.ts
index 12f520b12a..cb4b6debfb 100644
--- a/npm/ng-packs/packages/theme-shared/extensions/src/tests/enum.util.spec.ts
+++ b/npm/ng-packs/packages/theme-shared/extensions/src/tests/enum.util.spec.ts
@@ -1,6 +1,5 @@
-import { LocalizationService } from '@abp/ng.core';
-import { Store } from '@ngxs/store';
-import { BehaviorSubject, Subject } from 'rxjs';
+import { ConfigStateService, LocalizationService } from '@abp/ng.core';
+import { BehaviorSubject } from 'rxjs';
 import { take } from 'rxjs/operators';
 import { PropData } from '../lib/models/props';
 import { createEnum, createEnumOptions, createEnumValueResolver } from '../lib/utils/enum.util';
@@ -25,6 +24,19 @@ class MockPropData<R = any> extends PropData<R> {
   }
 }
 
+const mockL10n = {
+  values: {
+    Default: {
+      'Enum:MyEnum.foo': 'Foo',
+      'MyEnum.bar': 'Bar',
+      baz: 'Baz',
+    },
+  },
+  defaultResourceName: 'Default',
+  currentCulture: null,
+  languages: [],
+};
+
 describe('Enum Utils', () => {
   describe('#createEnum', () => {
     const enumFromFields = createEnum(fields);
@@ -43,27 +55,6 @@ describe('Enum Utils', () => {
   });
 
   describe('#createEnumValueResolver', () => {
-    const service = new LocalizationService(
-      mockSessionState,
-      ({
-        selectSnapshot: () => ({
-          values: {
-            Default: {
-              'Enum:MyEnum.foo': 'Foo',
-              'MyEnum.bar': 'Bar',
-              baz: 'Baz',
-            },
-          },
-          defaultResourceName: 'Default',
-          currentCulture: null,
-          languages: [],
-        }),
-      } as unknown) as Store,
-      null,
-      null,
-      null,
-    );
-
     test.each`
       value | expected
       ${1}  | ${'Foo'}
@@ -72,6 +63,7 @@ describe('Enum Utils', () => {
     `(
       'should create a resolver that returns observable $expected when enum value is $value',
       async ({ value, expected }) => {
+        const service = createMockLocalizationService();
         const valueResolver = createEnumValueResolver(
           'MyCompanyName.MyProjectName.MyEnum',
           {
@@ -92,28 +84,8 @@ describe('Enum Utils', () => {
   });
 
   describe('#createEnumOptions', () => {
-    const service = new LocalizationService(
-      mockSessionState,
-      ({
-        selectSnapshot: () => ({
-          values: {
-            Default: {
-              'Enum:MyEnum.foo': 'Foo',
-              'MyEnum.bar': 'Bar',
-              baz: 'Baz',
-            },
-          },
-          defaultResourceName: 'Default',
-          currentCulture: null,
-          languages: [],
-        }),
-      } as unknown) as Store,
-      null,
-      null,
-      null,
-    );
-
     it('should create a generator that returns observable options from enums', async () => {
+      const service = createMockLocalizationService();
       const options = createEnumOptions('MyCompanyName.MyProjectName.MyEnum', {
         fields,
         localizationResource: null,
@@ -133,3 +105,10 @@ describe('Enum Utils', () => {
     });
   });
 });
+
+function createMockLocalizationService() {
+  const configState = new ConfigStateService();
+  configState.setState({ localization: mockL10n } as any);
+
+  return new LocalizationService(mockSessionState, null, null, null, null, configState, null);
+}
diff --git a/npm/ng-packs/packages/theme-shared/extensions/src/tests/state.util.spec.ts b/npm/ng-packs/packages/theme-shared/extensions/src/tests/state.util.spec.ts
index 86060b8597..34acb30667 100644
--- a/npm/ng-packs/packages/theme-shared/extensions/src/tests/state.util.spec.ts
+++ b/npm/ng-packs/packages/theme-shared/extensions/src/tests/state.util.spec.ts
@@ -1,8 +1,4 @@
-import { ApplicationConfiguration, ConfigState } from '@abp/ng.core';
-import { HttpClient } from '@angular/common/http';
-import { SpectatorService } from '@ngneat/spectator';
-import { createServiceFactory } from '@ngneat/spectator/jest';
-import { NgxsModule, Store } from '@ngxs/store';
+import { ConfigStateService } from '@abp/ng.core';
 import { of } from 'rxjs';
 import { take } from 'rxjs/operators';
 import { ePropType } from '../lib/enums/props.enum';
@@ -13,40 +9,30 @@ import {
   getObjectExtensionEntitiesFromStore,
   mapEntitiesToContributors,
 } from '../lib/utils/state.util';
-import { OAuthService } from 'angular-oauth2-oidc';
 
-describe('State Utils', () => {
-  let spectator: SpectatorService<Store>;
-  let store: Store;
-
-  const createService = createServiceFactory({
-    service: Store,
-    imports: [NgxsModule.forRoot([ConfigState])],
-    mocks: [HttpClient, OAuthService],
-  });
-
-  beforeEach(() => {
-    spectator = createService();
-    store = spectator.service;
-    store.reset(createMockState());
-  });
+const configState = new ConfigStateService();
+configState.setState(createMockState() as any);
 
+describe('State Utils', () => {
   describe('#getObjectExtensionEntitiesFromStore', () => {
     it('should return observable entities of an existing module', async () => {
-      const entities = await getObjectExtensionEntitiesFromStore(store, 'Identity').toPromise();
+      const entities = await getObjectExtensionEntitiesFromStore(
+        configState,
+        'Identity',
+      ).toPromise();
       expect('Role' in entities).toBe(true);
     });
 
     it('should return observable empty object if module does not exist', async () => {
-      const entities = await getObjectExtensionEntitiesFromStore(store, 'Saas').toPromise();
+      const entities = await getObjectExtensionEntitiesFromStore(configState, 'Saas').toPromise();
       expect(entities).toEqual({});
     });
 
     it('should not emit when object extensions do not exist', done => {
-      store.reset({ ConfigState: {} });
+      const emptyConfigState = new ConfigStateService();
       const emit = jest.fn();
 
-      getObjectExtensionEntitiesFromStore(store, 'Identity').subscribe(emit);
+      getObjectExtensionEntitiesFromStore(emptyConfigState, 'Identity').subscribe(emit);
 
       setTimeout(() => {
         expect(emit).not.toHaveBeenCalled();
@@ -58,7 +44,7 @@ describe('State Utils', () => {
   describe('#mapEntitiesToContributors', () => {
     it('should return contributors from given entities', async () => {
       const contributors = await of(createMockEntities())
-        .pipe(mapEntitiesToContributors(store, 'AbpIdentity'), take(1))
+        .pipe(mapEntitiesToContributors(configState, 'AbpIdentity'), take(1))
         .toPromise();
 
       const propList = new EntityPropList();
@@ -86,50 +72,48 @@ describe('State Utils', () => {
   });
 });
 
-function createMockState(): MockState {
+function createMockState() {
   return {
-    ConfigState: {
-      objectExtensions: {
-        modules: {
-          Identity: {
-            entities: createMockEntities(),
-            configuration: null,
-          },
-        },
-        enums: {
-          'MyCompanyName.MyProjectName.MyEnum': {
-            fields: [
-              {
-                name: 'MyEnumValue0',
-                value: 0,
-              },
-              {
-                name: 'MyEnumValue1',
-                value: 1,
-              },
-              {
-                name: 'MyEnumValue2',
-                value: 2,
-              },
-            ],
-            localizationResource: null,
-          },
+    objectExtensions: {
+      modules: {
+        Identity: {
+          entities: createMockEntities(),
+          configuration: null,
         },
       },
-      localization: {
-        values: {
-          Default: {},
-          AbpIdentity: {},
+      enums: {
+        'MyCompanyName.MyProjectName.MyEnum': {
+          fields: [
+            {
+              name: 'MyEnumValue0',
+              value: 0,
+            },
+            {
+              name: 'MyEnumValue1',
+              value: 1,
+            },
+            {
+              name: 'MyEnumValue2',
+              value: 2,
+            },
+          ],
+          localizationResource: null,
         },
-        defaultResourceName: 'Default',
-        currentCulture: null,
-        languages: [],
       },
     },
+    localization: {
+      values: {
+        Default: {},
+        AbpIdentity: {},
+      },
+      defaultResourceName: 'Default',
+      currentCulture: null,
+      languages: [],
+    },
   };
 }
 
-function createMockEntities(): ObjectExtensions.Entities {
+function createMockEntities(): Record<string, ObjectExtensions.EntityExtensionDto> {
   return {
     Role: {
       properties: {
@@ -159,6 +143,7 @@ function createMockEntities(): ObjectExtensions.Entities {
             onEditForm: {
               isVisible: true,
             },
+            lookup: {},
           },
           attributes: [
             {
@@ -174,6 +159,7 @@ function createMockEntities(): ObjectExtensions.Entities {
             },
           ],
           configuration: {},
+          defaultValue: null,
         },
         IsHero: {
           type: 'System.Boolean',
@@ -201,9 +187,11 @@ function createMockEntities(): ObjectExtensions.Entities {
             onEditForm: {
               isVisible: true,
             },
+            lookup: {},
           },
           attributes: [],
           configuration: {},
+          defaultValue: null,
         },
         AsOf: {
           type: 'System.Date',
@@ -234,9 +222,11 @@ function createMockEntities(): ObjectExtensions.Entities {
             onEditForm: {
               isVisible: false,
             },
+            lookup: {},
           },
           attributes: [],
           configuration: {},
+          defaultValue: null,
         },
         MyEnum: {
           type: 'MyCompanyName.MyProjectName.MyEnum',
@@ -264,6 +254,7 @@ function createMockEntities(): ObjectExtensions.Entities {
             onEditForm: {
               isVisible: false,
             },
+            lookup: {},
           },
           attributes: [
             {
@@ -294,10 +285,3 @@ function createMockEntities(): ObjectExtensions.Entities {
     ClaimType: null,
   };
 }
-
-interface MockState {
-  ConfigState: {
-    localization: ApplicationConfiguration.Localization;
-    objectExtensions: ObjectExtensions.Item;
-  };
-}
diff --git a/npm/ng-packs/packages/theme-shared/extensions/src/tests/validation.util.spec.ts b/npm/ng-packs/packages/theme-shared/extensions/src/tests/validation.util.spec.ts
index b26bd9e1b0..abf4a6c486 100644
--- a/npm/ng-packs/packages/theme-shared/extensions/src/tests/validation.util.spec.ts
+++ b/npm/ng-packs/packages/theme-shared/extensions/src/tests/validation.util.spec.ts
@@ -12,7 +12,7 @@ describe('Validation Utils', () => {
             config: {},
           },
         ],
-      } as ObjectExtensions.Property;
+      } as ObjectExtensions.ExtensionPropertyDto;
 
       expect(getValidatorsFromProperty(property)[0]).toBe(Validators.email);
     });