diff --git a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang/externe-fachstelle-container/externe-fachstelle-container.component.spec.ts b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang/externe-fachstelle-container/externe-fachstelle-container.component.spec.ts
index 51f7b9f39c2a513bba610db9e81113a53411dfd4..7defa2f726d2600948b567387a209b4b43f1aa90 100644
--- a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang/externe-fachstelle-container/externe-fachstelle-container.component.spec.ts
+++ b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang/externe-fachstelle-container/externe-fachstelle-container.component.spec.ts
@@ -9,6 +9,7 @@ import {
   notExistsAsHtmlElement,
   useFromMock,
 } from '@alfa-client/test-utils';
+import { SnackBarService } from '@alfa-client/ui';
 import { VorgangWithEingangLinkRel, VorgangWithEingangResource } from '@alfa-client/vorgang-shared';
 import { SearchExterneFachstelleContainerComponent } from '@alfa-client/zustaendige-stelle';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
@@ -40,7 +41,11 @@ describe('ExterneFachstelleContainerComponent', () => {
   const collaborationListResource: CollaborationListResource = createCollaborationListResource();
 
   beforeEach(async () => {
-    formService = new CollaborationRequestFormService(new FormBuilder(), useFromMock(mock(CollaborationService)));
+    formService = new CollaborationRequestFormService(
+      new FormBuilder(),
+      useFromMock(mock(CollaborationService)),
+      useFromMock(mock(SnackBarService)),
+    );
     service = mock(CollaborationService);
     TestBed.overrideComponent(CollaborationRequestFormComponent, {
       set: {
diff --git a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang/organisations-einheit-container/organisations-einheit-container.component.spec.ts b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang/organisations-einheit-container/organisations-einheit-container.component.spec.ts
index 6184b6fdb3a36d7404160df9ce3005e9bc42eea6..414d95263a5b2c0158a455909863171803fade67 100644
--- a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang/organisations-einheit-container/organisations-einheit-container.component.spec.ts
+++ b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-in-vorgang/organisations-einheit-container/organisations-einheit-container.component.spec.ts
@@ -9,6 +9,7 @@ import {
   notExistsAsHtmlElement,
   useFromMock,
 } from '@alfa-client/test-utils';
+import { SnackBarService } from '@alfa-client/ui';
 import { VorgangWithEingangLinkRel, VorgangWithEingangResource } from '@alfa-client/vorgang-shared';
 import { SearchOrganisationsEinheitContainerComponent } from '@alfa-client/zustaendige-stelle';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
@@ -40,7 +41,11 @@ describe('OrganisationsEinheitContainerComponent', () => {
   const collaborationListResource: CollaborationListResource = createCollaborationListResource();
 
   beforeEach(async () => {
-    formService = new CollaborationRequestFormService(new FormBuilder(), useFromMock(mock(CollaborationService)));
+    formService = new CollaborationRequestFormService(
+      new FormBuilder(),
+      useFromMock(mock(CollaborationService)),
+      useFromMock(mock(SnackBarService)),
+    );
     service = mock(CollaborationService);
     TestBed.overrideComponent(CollaborationRequestFormComponent, {
       set: {
diff --git a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration-request-form.component.spec.ts b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration-request-form.component.spec.ts
index c6afc4f1d8ce8bbe019c5a6ad1c1a70bf4f91255..23949586177e6dd74e43221e75f8583f9ccf0e40 100644
--- a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration-request-form.component.spec.ts
+++ b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration-request-form.component.spec.ts
@@ -2,6 +2,7 @@ import { CollaborationListResource } from '@alfa-client/collaboration-shared';
 import { CommandLinkRel, CommandResource } from '@alfa-client/command-shared';
 import { StateResource, createStateResource } from '@alfa-client/tech-shared';
 import { dispatchEventFromFixture, getMockComponent, mock, useFromMock } from '@alfa-client/test-utils';
+import { SnackBarService } from '@alfa-client/ui';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { FormBuilder, ReactiveFormsModule } from '@angular/forms';
 import { ButtonWithSpinnerComponent, TextEditorComponent, TextareaEditorComponent } from '@ods/component';
@@ -28,7 +29,11 @@ describe('CollaborationRequestFormComponent', () => {
   const stateCommandResource: StateResource<CommandResource> = createStateResource(createCommandResource());
 
   beforeEach(async () => {
-    formService = new CollaborationRequestFormService(new FormBuilder(), useFromMock(mock(CollaborationService)));
+    formService = new CollaborationRequestFormService(
+      new FormBuilder(),
+      useFromMock(mock(CollaborationService)),
+      useFromMock(mock(SnackBarService)),
+    );
     TestBed.overrideComponent(CollaborationRequestFormComponent, {
       set: {
         providers: [
@@ -132,14 +137,6 @@ describe('CollaborationRequestFormComponent', () => {
       expect(formService.submit).toHaveBeenCalled();
     });
 
-    it('should emit show result', () => {
-      component.showResult.emit = jest.fn();
-
-      component.doSubmit().subscribe();
-
-      expect(component.showResult.emit).toHaveBeenCalledWith(formService.form.value);
-    });
-
     it('should return value', () => {
       formService.submit = jest.fn().mockReturnValue(of(stateCommandResource));
 
diff --git a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration-request-form.component.ts b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration-request-form.component.ts
index 36fabdc2f2ec25a404005de60ec512640d1cd04e..482844e993c719211db9f9ef8e1833953fbed29d 100644
--- a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration-request-form.component.ts
+++ b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration-request-form.component.ts
@@ -1,5 +1,5 @@
-import { Collaboration, CollaborationListResource } from '@alfa-client/collaboration-shared';
-import { CommandResource, tapOnCommandSuccessfullyDone } from '@alfa-client/command-shared';
+import { CollaborationListResource } from '@alfa-client/collaboration-shared';
+import { CommandResource } from '@alfa-client/command-shared';
 import { StateResource, createEmptyStateResource } from '@alfa-client/tech-shared';
 import { Component, EventEmitter, Input, Output } from '@angular/core';
 import { Observable, of } from 'rxjs';
@@ -11,7 +11,6 @@ import { CollaborationRequestFormService } from './collaboration.request.formser
 })
 export class CollaborationRequestFormComponent {
   @Output() public abbrechen: EventEmitter<void> = new EventEmitter<void>();
-  @Output() public showResult: EventEmitter<Collaboration> = new EventEmitter<Collaboration>();
 
   @Input() public set collaborationListResource(collaborationListResource: CollaborationListResource) {
     this.formService.setListResource(collaborationListResource);
@@ -28,8 +27,6 @@ export class CollaborationRequestFormComponent {
   }
 
   doSubmit(): Observable<StateResource<CommandResource>> {
-    return this.formService
-      .submit()
-      .pipe(tapOnCommandSuccessfullyDone(() => this.showResult.emit(this.formService.getFormValue())));
+    return this.formService.submit();
   }
 }
diff --git a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration.request.formservice.spec.ts b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration.request.formservice.spec.ts
index 4820b2987eddad0fea076dbf9d94c391f19735f3..0688eb4db4e249d6fd12760e752c831db9a0de1e 100644
--- a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration.request.formservice.spec.ts
+++ b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration.request.formservice.spec.ts
@@ -1,11 +1,13 @@
 import { CollaborationListResource } from '@alfa-client/collaboration-shared';
+import { SnackBarService } from '@alfa-client/ui';
+import { TestBed } from '@angular/core/testing';
 import { CommandLinkRel, CommandResource } from '@alfa-client/command-shared';
-import { StateResource, createStateResource } from '@alfa-client/tech-shared';
+import { StateResource, createEmptyStateResource, createStateResource } from '@alfa-client/tech-shared';
 import { Mock, mock, useFromMock } from '@alfa-client/test-utils';
 import { UntypedFormBuilder } from '@angular/forms';
 import { CollaborationService } from 'libs/collaboration-shared/src/lib/collaboration.service';
 import { createCollaborationListResource } from 'libs/collaboration-shared/test/collaboration';
-import { createCommandResource } from 'libs/command-shared/test/command';
+import { createCommandErrorResource, createCommandResource } from 'libs/command-shared/test/command';
 import { singleColdCompleted } from 'libs/tech-shared/test/marbles';
 import { Observable, of } from 'rxjs';
 import { CollaborationRequestFormService } from './collaboration.request.formservice';
@@ -14,15 +16,25 @@ describe('CollaborationRequestFormService', () => {
   let formService: CollaborationRequestFormService;
 
   let service: Mock<CollaborationService>;
-
-  const formBuilder: UntypedFormBuilder = new UntypedFormBuilder();
+  let snackBarService: Mock<SnackBarService>;
 
   const collaborationListResource: CollaborationListResource = createCollaborationListResource();
 
   beforeEach(() => {
     service = mock(CollaborationService);
+    snackBarService = mock(SnackBarService);
+
+    TestBed.configureTestingModule({
+      providers: [
+        CollaborationRequestFormService,
+        UntypedFormBuilder,
+        { provide: CollaborationService, useValue: service },
+        { provide: SnackBarService, useValue: snackBarService },
+      ],
+    });
 
-    formService = new CollaborationRequestFormService(formBuilder, useFromMock(service));
+    formService = TestBed.inject(CollaborationRequestFormService);
+    TestBed.inject(CollaborationRequestFormService);
   });
 
   it('should create', () => {
@@ -65,6 +77,14 @@ describe('CollaborationRequestFormService', () => {
       expect(service.refreshList).toHaveBeenCalled();
     });
 
+    it('should call handleCommandError', () => {
+      const handleCommanErrorSpy = jest.spyOn(formService as any, 'handleCommandError');
+
+      formService.submit().subscribe();
+
+      expect(handleCommanErrorSpy).toHaveBeenCalledWith(stateCommandResource.resource);
+    });
+
     it('should return stateCommandResource', () => {
       const response$: Observable<StateResource<CommandResource>> = formService.submit();
 
@@ -72,6 +92,41 @@ describe('CollaborationRequestFormService', () => {
     });
   });
 
+  describe('handleCommandError', () => {
+    let showErrorSpy: jest.SpyInstance;
+
+    beforeEach(() => {
+      showErrorSpy = jest.spyOn(formService as any, 'showError');
+    });
+
+    it('should not do anything if commandResource is nil', () => {
+      service.create.mockReturnValue(of(createEmptyStateResource()));
+
+      formService.submit().subscribe();
+
+      expect(showErrorSpy).not.toHaveBeenCalled();
+    });
+
+    it('should call showError if commandResource has error', () => {
+      service.create.mockReturnValue(of(createStateResource(createCommandErrorResource())));
+
+      formService.submit().subscribe();
+
+      expect(showErrorSpy).toHaveBeenCalled();
+    });
+  });
+
+  describe('showError', () => {
+    it('should call snackBarService.showError with commandResource errorMessage', () => {
+      const commandResourceWithError: CommandResource = createCommandErrorResource();
+      service.create.mockReturnValue(of(createStateResource(commandResourceWithError)));
+
+      formService.submit().subscribe();
+
+      expect(snackBarService.showError).toHaveBeenCalledWith(CollaborationRequestFormService.GENERIC_ERROR_MESSAGE);
+    });
+  });
+
   describe('set list resource', () => {
     it('should set given list resource', () => {
       formService.listResource = undefined;
diff --git a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration.request.formservice.ts b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration.request.formservice.ts
index 0b3f33a899156e8af47cd1a7db35abe9a255a38e..71dd8739c3b80fafbcef6dc4e534daaee16f267a 100644
--- a/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration.request.formservice.ts
+++ b/alfa-client/libs/collaboration/src/lib/collaboration-in-vorgang-container/collaboration-request-form/collaboration.request.formservice.ts
@@ -1,11 +1,13 @@
 import { CollaborationListResource } from '@alfa-client/collaboration-shared';
-import { CommandResource, tapOnCommandSuccessfullyDone } from '@alfa-client/command-shared';
+import { CommandResource, hasCommandError, tapOnCommandSuccessfullyDone } from '@alfa-client/command-shared';
 import { AbstractFormService, StateResource } from '@alfa-client/tech-shared';
+import { SnackBarService } from '@alfa-client/ui';
 import { Injectable } from '@angular/core';
 import { FormBuilder, FormControl, FormGroup } from '@angular/forms';
 import { ResourceUri } from '@ngxp/rest';
 import { CollaborationService } from 'libs/collaboration-shared/src/lib/collaboration.service';
-import { Observable } from 'rxjs';
+import { isNil } from 'lodash-es';
+import { Observable, tap } from 'rxjs';
 
 @Injectable()
 export class CollaborationRequestFormService extends AbstractFormService<CommandResource> {
@@ -13,6 +15,8 @@ export class CollaborationRequestFormService extends AbstractFormService<Command
   public static readonly FIELD_TITEL: string = 'titel';
   public static readonly FIELD_BESCHREIBUNG: string = 'beschreibung';
 
+  public static readonly GENERIC_ERROR_MESSAGE: string = 'Zuarbeit konnte nicht angefragt werden';
+
   private static readonly PATH_PREFIX: string = 'command.body';
 
   listResource: CollaborationListResource;
@@ -20,6 +24,7 @@ export class CollaborationRequestFormService extends AbstractFormService<Command
   constructor(
     formBuilder: FormBuilder,
     private service: CollaborationService,
+    private snackBarService: SnackBarService,
   ) {
     super(formBuilder);
   }
@@ -33,9 +38,24 @@ export class CollaborationRequestFormService extends AbstractFormService<Command
   }
 
   protected doSubmit(): Observable<StateResource<CommandResource>> {
-    return this.service
-      .create(this.listResource, this.getFormValue())
-      .pipe(tapOnCommandSuccessfullyDone(() => this.service.refreshList()));
+    return this.service.create(this.listResource, this.getFormValue()).pipe(
+      tapOnCommandSuccessfullyDone(() => this.service.refreshList()),
+      tap((commandStateResource: StateResource<CommandResource>) => {
+        this.handleCommandError(commandStateResource.resource);
+      }),
+    );
+  }
+
+  protected handleCommandError(commandResource: CommandResource): void {
+    if (isNil(commandResource)) return;
+
+    if (hasCommandError(commandResource)) {
+      this.showError();
+    }
+  }
+
+  protected showError(): void {
+    this.snackBarService.showError(CollaborationRequestFormService.GENERIC_ERROR_MESSAGE);
   }
 
   protected getPathPrefix(): string {