diff --git a/src/app/admin/admin-ldn-services/ldn-service-form/ldn-service-form.component.ts b/src/app/admin/admin-ldn-services/ldn-service-form/ldn-service-form.component.ts
index 56bd474a80..0a08264bda 100644
--- a/src/app/admin/admin-ldn-services/ldn-service-form/ldn-service-form.component.ts
+++ b/src/app/admin/admin-ldn-services/ldn-service-form/ldn-service-form.component.ts
@@ -313,7 +313,10 @@ export class LdnServiceFormComponent implements OnInit, OnDestroy {
    */
   selectInboundItemFilter(filterValue: string, index: number): void {
     const filterArray = (this.formModel.get('notifyServiceInboundPatterns') as FormArray);
-    filterArray.controls[index].patchValue({constraint: filterValue, constraintFormatted: this.translateService.instant(filterValue + '.label')});
+    filterArray.controls[index].patchValue({
+      constraint: filterValue,
+      constraintFormatted: this.translateService.instant((filterValue !== '' ? filterValue : 'ldn.no-filter') + '.label')
+    });
     filterArray.markAllAsTouched();
   }
 
diff --git a/src/app/admin/admin-notifications/admin-notifications-routing.module.ts b/src/app/admin/admin-notifications/admin-notifications-routing.module.ts
index e00a88cbe2..c82c91233e 100644
--- a/src/app/admin/admin-notifications/admin-notifications-routing.module.ts
+++ b/src/app/admin/admin-notifications/admin-notifications-routing.module.ts
@@ -6,22 +6,37 @@ import { I18nBreadcrumbResolver } from '../../core/breadcrumbs/i18n-breadcrumb.r
 import { I18nBreadcrumbsService } from '../../core/breadcrumbs/i18n-breadcrumbs.service';
 import {  PUBLICATION_CLAIMS_PATH } from './admin-notifications-routing-paths';
 import { AdminNotificationsPublicationClaimPageComponent } from './admin-notifications-publication-claim-page/admin-notifications-publication-claim-page.component';
-import { AdminNotificationsPublicationClaimPageResolver } from './admin-notifications-publication-claim-page/admin-notifications-publication-claim-page-resolver.service';
 import { QUALITY_ASSURANCE_EDIT_PATH } from './admin-notifications-routing-paths';
-import { AdminQualityAssuranceTopicsPageComponent } from './admin-quality-assurance-topics-page/admin-quality-assurance-topics-page.component';
-import { AdminQualityAssuranceEventsPageComponent } from './admin-quality-assurance-events-page/admin-quality-assurance-events-page.component';
-import { AdminQualityAssuranceTopicsPageResolver } from './admin-quality-assurance-topics-page/admin-quality-assurance-topics-page-resolver.service';
-import { AdminQualityAssuranceEventsPageResolver } from './admin-quality-assurance-events-page/admin-quality-assurance-events-page.resolver';
-import { AdminQualityAssuranceSourcePageComponent } from './admin-quality-assurance-source-page-component/admin-quality-assurance-source-page.component';
-import { AdminQualityAssuranceSourcePageResolver } from './admin-quality-assurance-source-page-component/admin-quality-assurance-source-page-resolver.service';
 import {
   SiteAdministratorGuard
 } from '../../core/data/feature-authorization/feature-authorization-guard/site-administrator.guard';
 import { QualityAssuranceBreadcrumbResolver } from '../../core/breadcrumbs/quality-assurance-breadcrumb.resolver';
 import { QualityAssuranceBreadcrumbService } from '../../core/breadcrumbs/quality-assurance-breadcrumb.service';
+import {
+  QualityAssuranceEventsPageResolver
+} from '../../quality-assurance-notifications-pages/quality-assurance-events-page/quality-assurance-events-page.resolver';
+import {
+  AdminNotificationsPublicationClaimPageResolver
+} from '../../quality-assurance-notifications-pages/notifications-suggestion-targets-page/notifications-suggestion-targets-page-resolver.service';
+import {
+  QualityAssuranceTopicsPageComponent
+} from '../../quality-assurance-notifications-pages/quality-assurance-topics-page/quality-assurance-topics-page.component';
+import {
+  QualityAssuranceTopicsPageResolver
+} from '../../quality-assurance-notifications-pages/quality-assurance-topics-page/quality-assurance-topics-page-resolver.service';
+import {
+  QualityAssuranceSourcePageComponent
+} from '../../quality-assurance-notifications-pages/quality-assurance-source-page-component/quality-assurance-source-page.component';
+import {
+  QualityAssuranceSourcePageResolver
+} from '../../quality-assurance-notifications-pages/quality-assurance-source-page-component/quality-assurance-source-page-resolver.service';
 import {
   SourceDataResolver
-} from './admin-quality-assurance-source-page-component/admin-quality-assurance-source-data.resolver';
+} from '../../quality-assurance-notifications-pages/quality-assurance-source-page-component/quality-assurance-source-data.resolver';
+import {
+  QualityAssuranceEventsPageComponent
+} from '../../quality-assurance-notifications-pages/quality-assurance-events-page/quality-assurance-events-page.component';
+
 
 @NgModule({
   imports: [
@@ -44,11 +59,11 @@ import {
       {
         canActivate: [ AuthenticatedGuard ],
         path: `${QUALITY_ASSURANCE_EDIT_PATH}/:sourceId`,
-        component: AdminQualityAssuranceTopicsPageComponent,
+        component: QualityAssuranceTopicsPageComponent,
         pathMatch: 'full',
         resolve: {
           breadcrumb: QualityAssuranceBreadcrumbResolver,
-          openaireQualityAssuranceTopicsParams: AdminQualityAssuranceTopicsPageResolver
+          openaireQualityAssuranceTopicsParams: QualityAssuranceTopicsPageResolver
         },
         data: {
           title: 'admin.quality-assurance.page.title',
@@ -59,11 +74,11 @@ import {
       {
         canActivate: [ AuthenticatedGuard ],
         path: `${QUALITY_ASSURANCE_EDIT_PATH}/:sourceId/target/:targetId`,
-        component: AdminQualityAssuranceTopicsPageComponent,
+        component: QualityAssuranceTopicsPageComponent,
         pathMatch: 'full',
         resolve: {
           breadcrumb: I18nBreadcrumbResolver,
-          openaireQualityAssuranceTopicsParams: AdminQualityAssuranceTopicsPageResolver
+          openaireQualityAssuranceTopicsParams: QualityAssuranceTopicsPageResolver
         },
         data: {
           title: 'admin.quality-assurance.page.title',
@@ -74,11 +89,11 @@ import {
       {
         canActivate: [ SiteAdministratorGuard ],
         path: `${QUALITY_ASSURANCE_EDIT_PATH}`,
-        component: AdminQualityAssuranceSourcePageComponent,
+        component: QualityAssuranceSourcePageComponent,
         pathMatch: 'full',
         resolve: {
           breadcrumb: I18nBreadcrumbResolver,
-          openaireQualityAssuranceSourceParams: AdminQualityAssuranceSourcePageResolver,
+          openaireQualityAssuranceSourceParams: QualityAssuranceSourcePageResolver,
           sourceData: SourceDataResolver
         },
         data: {
@@ -90,11 +105,11 @@ import {
       {
         canActivate: [ AuthenticatedGuard ],
         path: `${QUALITY_ASSURANCE_EDIT_PATH}/:sourceId/:topicId`,
-        component: AdminQualityAssuranceEventsPageComponent,
+        component: QualityAssuranceEventsPageComponent,
         pathMatch: 'full',
         resolve: {
           breadcrumb: QualityAssuranceBreadcrumbResolver,
-          openaireQualityAssuranceEventsParams: AdminQualityAssuranceEventsPageResolver
+          openaireQualityAssuranceEventsParams: QualityAssuranceEventsPageResolver
         },
         data: {
           title: 'admin.notifications.event.page.title',
@@ -109,10 +124,10 @@ import {
     I18nBreadcrumbsService,
     AdminNotificationsPublicationClaimPageResolver,
     SourceDataResolver,
-    AdminQualityAssuranceSourcePageResolver,
-    AdminQualityAssuranceTopicsPageResolver,
-    AdminQualityAssuranceEventsPageResolver,
-    AdminQualityAssuranceSourcePageResolver,
+    QualityAssuranceSourcePageResolver,
+    QualityAssuranceTopicsPageResolver,
+    QualityAssuranceEventsPageResolver,
+    QualityAssuranceSourcePageResolver,
     QualityAssuranceBreadcrumbResolver,
     QualityAssuranceBreadcrumbService
   ]
diff --git a/src/app/admin/admin-routing-paths.ts b/src/app/admin/admin-routing-paths.ts
index 144b9d09bf..270fb8bc81 100644
--- a/src/app/admin/admin-routing-paths.ts
+++ b/src/app/admin/admin-routing-paths.ts
@@ -4,11 +4,17 @@ import { getQualityAssuranceEditRoute } from './admin-notifications/admin-notifi
 
 export const REGISTRIES_MODULE_PATH = 'registries';
 export const NOTIFICATIONS_MODULE_PATH = 'notifications';
+export const LDN_PATH = 'ldn';
+
 
 export function getRegistriesModuleRoute() {
   return new URLCombiner(getAdminModuleRoute(), REGISTRIES_MODULE_PATH).toString();
 }
 
+export function getLdnServicesModuleRoute() {
+  return new URLCombiner(getAdminModuleRoute(), LDN_PATH).toString();
+}
+
 export function getNotificationsModuleRoute() {
   return new URLCombiner(getAdminModuleRoute(), NOTIFICATIONS_MODULE_PATH).toString();
 }
diff --git a/src/app/admin/admin-routing.module.ts b/src/app/admin/admin-routing.module.ts
index c17dd5554f..2374c9af1e 100644
--- a/src/app/admin/admin-routing.module.ts
+++ b/src/app/admin/admin-routing.module.ts
@@ -6,7 +6,7 @@ import { I18nBreadcrumbResolver } from '../core/breadcrumbs/i18n-breadcrumb.reso
 import { AdminWorkflowPageComponent } from './admin-workflow-page/admin-workflow-page.component';
 import { I18nBreadcrumbsService } from '../core/breadcrumbs/i18n-breadcrumbs.service';
 import { AdminCurationTasksComponent } from './admin-curation-tasks/admin-curation-tasks.component';
-import { REGISTRIES_MODULE_PATH } from './admin-routing-paths';
+import { LDN_PATH, NOTIFICATIONS_MODULE_PATH, REGISTRIES_MODULE_PATH } from './admin-routing-paths';
 import { BatchImportPageComponent } from './admin-import-batch-page/batch-import-page.component';
 import {
   SiteAdministratorGuard
@@ -15,6 +15,11 @@ import {
 @NgModule({
   imports: [
     RouterModule.forChild([
+      {
+        path: NOTIFICATIONS_MODULE_PATH,
+        loadChildren: () => import('./admin-notifications/admin-notifications.module')
+          .then((m) => m.AdminNotificationsModule),
+      },
       {
         path: REGISTRIES_MODULE_PATH,
         loadChildren: () => import('./admin-registries/admin-registries.module')
@@ -63,6 +68,17 @@ import {
         data: {title: 'admin.system-wide-alert.title', breadcrumbKey: 'admin.system-wide-alert'},
         canActivate: [SiteAdministratorGuard]
       },
+      {
+        path: LDN_PATH,
+        children: [
+          { path: '', pathMatch: 'full', redirectTo: 'services' },
+          {
+            path: 'services',
+            loadChildren: () => import('./admin-ldn-services/admin-ldn-services.module')
+              .then((m) => m.AdminLdnServicesModule),
+          }
+        ],
+      },
     ])
   ],
   providers: [
diff --git a/src/app/core/breadcrumbs/quality-assurance-breadcrumb.service.ts b/src/app/core/breadcrumbs/quality-assurance-breadcrumb.service.ts
index 53aba9fa0d..a0299705a4 100644
--- a/src/app/core/breadcrumbs/quality-assurance-breadcrumb.service.ts
+++ b/src/app/core/breadcrumbs/quality-assurance-breadcrumb.service.ts
@@ -2,10 +2,7 @@ import { Breadcrumb } from '../../breadcrumbs/breadcrumb/breadcrumb.model';
 import { BreadcrumbsProviderService } from './breadcrumbsProviderService';
 import { Observable, of as observableOf } from 'rxjs';
 import { Injectable } from '@angular/core';
-import { map } from 'rxjs/operators';
-import { getFirstCompletedRemoteData } from '../shared/operators';
 import { TranslateService } from '@ngx-translate/core';
-import { QualityAssuranceTopicDataService } from '../notifications/qa/topics/quality-assurance-topic-data.service';
 
 
 
@@ -19,7 +16,6 @@ export class QualityAssuranceBreadcrumbService implements BreadcrumbsProviderSer
 
   private QUALITY_ASSURANCE_BREADCRUMB_KEY = 'admin.quality-assurance.breadcrumbs';
   constructor(
-    protected qualityAssuranceService: QualityAssuranceTopicDataService,
     private translationService: TranslateService,
   ) {
 
@@ -32,18 +28,14 @@ export class QualityAssuranceBreadcrumbService implements BreadcrumbsProviderSer
    * @param url The url to use as a link for this breadcrumb
    */
   getBreadcrumbs(key: string, url: string): Observable<Breadcrumb[]> {
-    const sourceId = key.split(':')[0];
-    const topicId = key.split(':')[2];
+    const args = key.split(':');
+    const sourceId = args[0];
+    const topicId = args.length > 2 ? args[args.length - 1] : args[1];
 
     if (topicId) {
-      return this.qualityAssuranceService.getTopic(topicId).pipe(
-        getFirstCompletedRemoteData(),
-        map((topic) => {
-            return [new Breadcrumb(this.translationService.instant(this.QUALITY_ASSURANCE_BREADCRUMB_KEY), url),
-              new Breadcrumb(sourceId, `${url}${sourceId}`),
-              new Breadcrumb(topicId.replace(/[!:]/g, '/'), undefined)];
-        })
-      );
+      return observableOf( [new Breadcrumb(this.translationService.instant(this.QUALITY_ASSURANCE_BREADCRUMB_KEY), url),
+        new Breadcrumb(sourceId, `${url}${sourceId}`),
+        new Breadcrumb(topicId, undefined)]);
     } else {
       return observableOf([new Breadcrumb(this.translationService.instant(this.QUALITY_ASSURANCE_BREADCRUMB_KEY), url),
         new Breadcrumb(sourceId, `${url}${sourceId}`)]);
diff --git a/src/app/core/core.module.ts b/src/app/core/core.module.ts
index 119b993faf..7088860674 100644
--- a/src/app/core/core.module.ts
+++ b/src/app/core/core.module.ts
@@ -186,8 +186,18 @@ import { ValueListBrowseDefinition } from './shared/value-list-browse-definition
 import { NonHierarchicalBrowseDefinition } from './shared/non-hierarchical-browse-definition';
 import { BulkAccessConditionOptions } from './config/models/bulk-access-condition-options.model';
 import { CorrectionTypeDataService } from './submission/correctiontype-data.service';
-import { SuggestionTarget } from './suggestion-notifications/models/suggestion-target.model';
-import { SuggestionSource } from './suggestion-notifications/models/suggestion-source.model';
+import { LdnServicesService } from '../admin/admin-ldn-services/ldn-services-data/ldn-services-data.service';
+import { LdnItemfiltersService } from '../admin/admin-ldn-services/ldn-services-data/ldn-itemfilters-data.service';
+import {
+  CoarNotifyConfigDataService
+} from '../submission/sections/section-coar-notify/coar-notify-config-data.service';
+import { NotifyRequestsStatusDataService } from './data/notify-services-status-data.service';
+import { SuggestionTarget } from './notifications/models/suggestion-target.model';
+import { SuggestionSource } from './notifications/models/suggestion-source.model';
+import { NotifyRequestsStatus } from '../item-page/simple/notify-requests-status/notify-requests-status.model';
+import { LdnService } from '../admin/admin-ldn-services/ldn-services-model/ldn-services.model';
+import { Itemfilter } from '../admin/admin-ldn-services/ldn-services-model/ldn-service-itemfilters';
+import { SubmissionCoarNotifyConfig } from '../submission/sections/section-coar-notify/submission-coar-notify.config';
 
 /**
  * When not in production, endpoint responses can be mocked for testing purposes
@@ -311,7 +321,11 @@ const PROVIDERS = [
   OrcidQueueDataService,
   OrcidHistoryDataService,
   SupervisionOrderDataService,
-  CorrectionTypeDataService
+  CorrectionTypeDataService,
+  LdnServicesService,
+  LdnItemfiltersService,
+  CoarNotifyConfigDataService,
+  NotifyRequestsStatusDataService
 ];
 
 /**
@@ -392,7 +406,11 @@ export const models =
     ItemRequest,
     BulkAccessConditionOptions,
     SuggestionTarget,
-    SuggestionSource
+    SuggestionSource,
+    LdnService,
+    Itemfilter,
+    SubmissionCoarNotifyConfig,
+    NotifyRequestsStatus,
   ];
 
 @NgModule({
diff --git a/src/app/notifications/notifications.module.ts b/src/app/notifications/notifications.module.ts
index 88b69f26a1..11bf675f72 100644
--- a/src/app/notifications/notifications.module.ts
+++ b/src/app/notifications/notifications.module.ts
@@ -27,29 +27,20 @@ import {
   QualityAssuranceSourceDataService
 } from '../core/notifications/qa/source/quality-assurance-source-data.service';
 import { EPersonDataComponent } from './qa/events/ePerson-data/ePerson-data.component';
-import { PublicationClaimComponent } from '../suggestion-notifications/suggestion-targets/publication-claim/publication-claim.component';
-import { SuggestionActionsComponent } from '../suggestion-notifications/suggestion-actions/suggestion-actions.component';
-import {
-  SuggestionListElementComponent
-} from '../suggestion-notifications/suggestion-list-element/suggestion-list-element.component';
+import { SuggestionActionsComponent } from './suggestion-actions/suggestion-actions.component';
+import { PublicationClaimComponent } from './suggestion-targets/publication-claim/publication-claim.component';
+import { SuggestionListElementComponent } from './suggestion-list-element/suggestion-list-element.component';
 import {
   SuggestionEvidencesComponent
-} from '../suggestion-notifications/suggestion-list-element/suggestion-evidences/suggestion-evidences.component';
-import { SuggestionsPopupComponent } from '../suggestion-notifications/suggestions-popup/suggestions-popup.component';
-import {
-  SuggestionsNotificationComponent
-} from '../suggestion-notifications/suggestions-notification/suggestions-notification.component';
-import { SuggestionsService } from '../suggestion-notifications/suggestions.service';
-import { SuggestionsDataService } from '../core/suggestion-notifications/suggestions-data.service';
-import {
-  SuggestionSourceDataService
-} from '../core/suggestion-notifications/source/suggestion-source-data.service';
-import {
-  SuggestionTargetDataService
-} from '../core/suggestion-notifications/target/suggestion-target-data.service';
-import {
-  SuggestionTargetsStateService
-} from '../suggestion-notifications/suggestion-targets/suggestion-targets.state.service';
+} from './suggestion-list-element/suggestion-evidences/suggestion-evidences.component';
+import { SuggestionsPopupComponent } from './suggestions-popup/suggestions-popup.component';
+import { SuggestionsNotificationComponent } from './suggestions-notification/suggestions-notification.component';
+import { SuggestionsService } from './suggestions.service';
+import { SuggestionSourceDataService } from '../core/notifications/source/suggestion-source-data.service';
+import { SuggestionTargetDataService } from '../core/notifications/target/suggestion-target-data.service';
+import { SuggestionTargetsStateService } from './suggestion-targets/suggestion-targets.state.service';
+import { SuggestionsDataService } from '../core/notifications/suggestions-data.service';
+
 
 
 const MODULES = [
diff --git a/src/app/notifications/qa/events/quality-assurance-events.component.ts b/src/app/notifications/qa/events/quality-assurance-events.component.ts
index 60550a8baf..953fc9c405 100644
--- a/src/app/notifications/qa/events/quality-assurance-events.component.ts
+++ b/src/app/notifications/qa/events/quality-assurance-events.component.ts
@@ -26,7 +26,7 @@ import {
   ProjectEntryImportModalComponent,
   QualityAssuranceEventData
 } from '../project-entry-import-modal/project-entry-import-modal.component';
-import { getFirstCompletedRemoteData } from '../../../core/shared/operators';
+import { getFirstCompletedRemoteData, getRemoteDataPayload } from '../../../core/shared/operators';
 import { PaginationService } from '../../../core/pagination/pagination.service';
 import { Item } from '../../../core/shared/item.model';
 import { FindListOptions } from '../../../core/data/find-list-options.model';
@@ -34,6 +34,8 @@ import { AuthorizationDataService } from '../../../core/data/feature-authorizati
 import { FeatureID } from '../../../core/data/feature-authorization/feature-id';
 import { NoContent } from '../../../core/shared/NoContent.model';
 import { environment } from '../../../../environments/environment';
+import { getItemPageRoute } from '../../../item-page/item-page-routing-paths';
+import { ItemDataService } from '../../../core/data/item-data.service';
 
 /**
  * Component to display the Quality Assurance event list.
@@ -119,6 +121,22 @@ export class QualityAssuranceEventsComponent implements OnInit, OnDestroy {
    */
   protected subs: Subscription[] = [];
 
+  /**
+   * The target item id, retrieved from the topic-id composition.
+   */
+  public targetId: string;
+
+  /**
+   * The URL of the item page/target.
+   */
+  public itemPageUrl: string;
+
+  /**
+   * Plain topic name (without the source id)
+   */
+  public selectedTopicName: string;
+
+
   /**
    * Observable that emits a boolean value indicating whether the user is an admin.
    */
@@ -132,6 +150,8 @@ export class QualityAssuranceEventsComponent implements OnInit, OnDestroy {
    * @param {QualityAssuranceEventDataService} qualityAssuranceEventRestService
    * @param {PaginationService} paginationService
    * @param {TranslateService} translateService
+   * @param authorizationService
+   * @param itemService
    */
   constructor(
     private activatedRoute: ActivatedRoute,
@@ -141,6 +161,7 @@ export class QualityAssuranceEventsComponent implements OnInit, OnDestroy {
     private paginationService: PaginationService,
     private translateService: TranslateService,
     private authorizationService: AuthorizationDataService,
+    private itemService: ItemDataService,
   ) {
   }
 
@@ -161,6 +182,10 @@ export class QualityAssuranceEventsComponent implements OnInit, OnDestroy {
         const regEx = /!/g;
         this.showTopic = id.replace(regEx, '/');
         this.topic = id;
+        const splitList = this.showTopic?.split(':');
+        this.targetId = splitList.length > 2 ? splitList.pop() : null;
+        this.selectedTopicName = splitList[1];
+        this.sourceId = splitList[0];
         return this.getQualityAssuranceEvents();
       })
     ).subscribe(
@@ -471,4 +496,21 @@ export class QualityAssuranceEventsComponent implements OnInit, OnDestroy {
   delete(qaEvent: QualityAssuranceEventData): Observable<RemoteData<NoContent>> {
     return this.qualityAssuranceEventRestService.deleteQAEvent(qaEvent);
   }
+
+  /**
+   * Returns an Observable that emits the title of the target item.
+   * The target item is retrieved by its ID using the itemService.
+   * The title is extracted from the first metadata value of the item.
+   * The item page URL is also set in the component.
+   * @returns An Observable that emits the title of the target item.
+   */
+  public getTargetItemTitle(): Observable<string> {
+    return this.itemService.findById(this.targetId).pipe(
+      take(1),
+      getFirstCompletedRemoteData(),
+      getRemoteDataPayload(),
+      tap((item: Item) => this.itemPageUrl = getItemPageRoute(item)),
+      map((item: Item) => item.firstMetadataValue('dc.title'))
+    );
+  }
 }
diff --git a/src/app/notifications/qa/topics/quality-assurance-topics.component.ts b/src/app/notifications/qa/topics/quality-assurance-topics.component.ts
index bda45c71c8..5a077de1fe 100644
--- a/src/app/notifications/qa/topics/quality-assurance-topics.component.ts
+++ b/src/app/notifications/qa/topics/quality-assurance-topics.component.ts
@@ -10,9 +10,7 @@ import {
 import { hasValue } from '../../../shared/empty.util';
 import { PaginationComponentOptions } from '../../../shared/pagination/pagination-component-options.model';
 import { NotificationsStateService } from '../../notifications-state.service';
-import {
-  AdminQualityAssuranceTopicsPageParams
-} from '../../../admin/admin-notifications/admin-quality-assurance-topics-page/admin-quality-assurance-topics-page-resolver.service';
+
 import { PaginationService } from '../../../core/pagination/pagination.service';
 import { ActivatedRoute, Router } from '@angular/router';
 import { ItemDataService } from '../../../core/data/item-data.service';
@@ -20,6 +18,9 @@ import { getFirstCompletedRemoteData, getRemoteDataPayload } from '../../../core
 import { Item } from '../../../core/shared/item.model';
 import { getItemPageRoute } from '../../../item-page/item-page-routing-paths';
 import { getNotificatioQualityAssuranceRoute } from '../../../admin/admin-routing-paths';
+import {
+  QualityAssuranceTopicsPageParams
+} from '../../../quality-assurance-notifications-pages/quality-assurance-topics-page/quality-assurance-topics-page-resolver.service';
 
 /**
  * Component to display the Quality Assurance topic list.
@@ -79,8 +80,9 @@ export class QualityAssuranceTopicsComponent implements OnInit, OnDestroy, After
    * Initialize the component variables.
    * @param {PaginationService} paginationService
    * @param {ActivatedRoute} activatedRoute
+   * @param itemService
    * @param {NotificationsStateService} notificationsStateService
-   * @param {QualityAssuranceTopicsService} qualityAssuranceTopicsService
+   * @param router
    */
   constructor(
     private paginationService: PaginationService,
@@ -163,7 +165,7 @@ export class QualityAssuranceTopicsComponent implements OnInit, OnDestroy, After
    *
    * @param eventsRouteParams
    */
-  protected updatePaginationFromRouteParams(eventsRouteParams: AdminQualityAssuranceTopicsPageParams) {
+  protected updatePaginationFromRouteParams(eventsRouteParams: QualityAssuranceTopicsPageParams) {
     if (eventsRouteParams.currentPage) {
       this.paginationConfig.currentPage = eventsRouteParams.currentPage;
     }
diff --git a/src/app/shared/shared.module.ts b/src/app/shared/shared.module.ts
index e31ff2cac1..9fd09789cf 100644
--- a/src/app/shared/shared.module.ts
+++ b/src/app/shared/shared.module.ts
@@ -286,6 +286,7 @@ import { QualityAssuranceEventDataService } from '../core/notifications/qa/event
 import { QualityAssuranceSourceDataService } from '../core/notifications/qa/source/quality-assurance-source-data.service';
 import { DynamicComponentLoaderDirective } from './abstract-component-loader/dynamic-component-loader.directive';
 import { StartsWithLoaderComponent } from './starts-with/starts-with-loader.component';
+import { IpV4Validator } from './utils/ipV4.validator';
 
 const MODULES = [
   CommonModule,
@@ -496,6 +497,7 @@ const DIRECTIVES = [
   HoverClassDirective,
   ContextHelpDirective,
   DynamicComponentLoaderDirective,
+  IpV4Validator,
 ];
 
 @NgModule({
diff --git a/src/app/submission/sections/section-coar-notify/section-coar-notify.component.ts b/src/app/submission/sections/section-coar-notify/section-coar-notify.component.ts
index bd627608cd..2fe7391106 100644
--- a/src/app/submission/sections/section-coar-notify/section-coar-notify.component.ts
+++ b/src/app/submission/sections/section-coar-notify/section-coar-notify.component.ts
@@ -141,9 +141,9 @@ export class SubmissionSectionCoarNotifyComponent extends SectionModelComponent
       this.operationsBuilder.flushOperation(this.pathCombiner.getPath([pattern, '-']));
     }
 
-    if (!hasPrevValueStored || (selectedService?.id && hasPrevValueStored)) {
+    if (!hasPrevValueStored || (selectedService?.id && hasPrevValueStored) || (!hasValue(selectedService) && hasPrevValueStored)) {
       // add the path when there is no previous value stored
-      this.operationsBuilder.add(this.pathCombiner.getPath([pattern, '-']), [selectedService.id], false, true);
+      this.operationsBuilder.add(this.pathCombiner.getPath([pattern, '-']), hasValue(selectedService) ? [selectedService.id] : [], false, true);
     }
     // set the previous value to the new value
     this.previousServices[pattern].services[index] = this.ldnServiceByPattern[pattern].services[index];
diff --git a/src/assets/i18n/en.json5 b/src/assets/i18n/en.json5
index 8331a3cbeb..d0ec135028 100644
--- a/src/assets/i18n/en.json5
+++ b/src/assets/i18n/en.json5
@@ -6097,4 +6097,6 @@
   "filter.search.text.placeholder": "Search text",
 
   "advancesearch.form.submit": "Add",
+
+  "ldn.no-filter.label": "None",
 }