diff --git a/alfa-client/libs/collaboration-shared/src/lib/organisations-einheit.service.spec.ts b/alfa-client/libs/collaboration-shared/src/lib/organisations-einheit.service.spec.ts
index 2099588d498d90965f498e9c9c8a1bce56d9bce5..f264006658fe044ac57ad9a2926427046ba6f029 100644
--- a/alfa-client/libs/collaboration-shared/src/lib/organisations-einheit.service.spec.ts
+++ b/alfa-client/libs/collaboration-shared/src/lib/organisations-einheit.service.spec.ts
@@ -99,4 +99,12 @@ describe('OrganisationsEinheitService', () => {
       expect(searchService.selectResult).toHaveBeenCalledWith(organisationsEinheitResource);
     });
   });
+
+  describe('clear selected result', () => {
+    it('should call service', () => {
+      service.clearSelectedResult();
+
+      expect(searchService.clearSelectedResult).toHaveBeenCalled();
+    });
+  });
 });
diff --git a/alfa-client/libs/collaboration-shared/src/lib/organisations-einheit.service.ts b/alfa-client/libs/collaboration-shared/src/lib/organisations-einheit.service.ts
index f4fadaf317dfd2bc7bf9103e8bd4d953613c21aa..495c115446391b8d126feef91bc6b02ad9c24134 100644
--- a/alfa-client/libs/collaboration-shared/src/lib/organisations-einheit.service.ts
+++ b/alfa-client/libs/collaboration-shared/src/lib/organisations-einheit.service.ts
@@ -30,4 +30,8 @@ export class OrganisationsEinheitService {
   public selectSearchResult(organisationsEinheitResource: OrganisationsEinheitResource): void {
     this.searchService.selectResult(organisationsEinheitResource);
   }
+
+  public clearSelectedResult(): void {
+    this.searchService.clearSelectedResult();
+  }
 }
diff --git a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang-container.component.spec.ts b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang-container.component.spec.ts
index 85649462f34ddd362382333feed07cf10693ed88..a5e6e9e22dc4c22f174f59115b1bb954d1addaf3 100644
--- a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang-container.component.spec.ts
+++ b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang-container.component.spec.ts
@@ -155,4 +155,12 @@ describe('CollaborationInVorgangContainerComponent', () => {
       expect(service.hideRequestForm).toHaveBeenCalled();
     });
   });
+
+  describe('ngOnDestroy', () => {
+    it('should call service to clear selected result', () => {
+      component.ngOnDestroy();
+
+      expect(organisationsEinheitSearchService.clearSelectedResult).toHaveBeenCalled();
+    });
+  });
 });
diff --git a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang-container.component.ts b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang-container.component.ts
index 63127377e2c066b9a8eedaa7e2ca7b58c74ba8fa..50c5d04bcffdbd5cd7171a14c5f696839b7447ea 100644
--- a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang-container.component.ts
+++ b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang-container.component.ts
@@ -1,6 +1,6 @@
 import { OrganisationsEinheitResource } from '@alfa-client/collaboration-shared';
 import { StateResource } from '@alfa-client/tech-shared';
-import { Component, OnInit } from '@angular/core';
+import { Component, OnDestroy, OnInit } from '@angular/core';
 import { CollaborationListResource } from 'libs/collaboration-shared/src/lib/collaboration.model';
 import { CollaborationService } from 'libs/collaboration-shared/src/lib/collaboration.service';
 import { OrganisationsEinheitResourceSearchService } from 'libs/collaboration-shared/src/lib/organisations-einheit-resource-search.service';
@@ -10,7 +10,7 @@ import { Observable } from 'rxjs';
   selector: 'alfa-collaboration-in-vorgang-container',
   templateUrl: './collaboration-in-vorgang-container.component.html',
 })
-export class CollaborationInVorgangContainerComponent implements OnInit {
+export class CollaborationInVorgangContainerComponent implements OnInit, OnDestroy {
   public collaborationStateListResource$: Observable<StateResource<CollaborationListResource>>;
   public isRequestFormVisible$: Observable<boolean>;
   public selectedOrganisationsEinheit$: Observable<OrganisationsEinheitResource>;
@@ -33,4 +33,8 @@ export class CollaborationInVorgangContainerComponent implements OnInit {
   public hideRequestForm(): void {
     this.service.hideRequestForm();
   }
+
+  ngOnDestroy(): void {
+    this.searchService.clearSelectedResult();
+  }
 }
diff --git a/alfa-client/libs/tech-shared/src/lib/resource/resource-search.service.spec.ts b/alfa-client/libs/tech-shared/src/lib/resource/resource-search.service.spec.ts
index acbd45df651fd4343be7601e8a9886850f133f0e..1c1d30cbcd83ef02da378247d4e2792ff750d3a0 100644
--- a/alfa-client/libs/tech-shared/src/lib/resource/resource-search.service.spec.ts
+++ b/alfa-client/libs/tech-shared/src/lib/resource/resource-search.service.spec.ts
@@ -191,4 +191,16 @@ describe('ResourceSearchService', () => {
       expect(service.selectedResource.value).toEqual(dummyResource);
     });
   });
+
+  describe('clear select result', () => {
+    const dummyResource: Resource = createDummyResource();
+
+    it('should update selected resource to null', () => {
+      service.selectedResource.next(dummyResource);
+
+      service.clearSelectedResult();
+
+      expect(service.selectedResource.value).toBeNull();
+    });
+  });
 });
diff --git a/alfa-client/libs/tech-shared/src/lib/resource/resource-search.service.ts b/alfa-client/libs/tech-shared/src/lib/resource/resource-search.service.ts
index d23b4be986f9a8fb880e582c5925f525459bf3dc..f8e52663e186ba7c2ebe4b8d6bec0dd593163e3a 100644
--- a/alfa-client/libs/tech-shared/src/lib/resource/resource-search.service.ts
+++ b/alfa-client/libs/tech-shared/src/lib/resource/resource-search.service.ts
@@ -98,4 +98,8 @@ export class ResourceSearchService<
   public selectResult(selected: I): void {
     this.selectedResource.next(selected);
   }
+
+  public clearSelectedResult(): void {
+    this.selectedResource.next(null);
+  }
 }