diff --git a/frontend/cypress/e2e/tab.cy.ts b/frontend/cypress/e2e/tab.cy.ts
index 9ce4a096a6..c7d700b661 100644
--- a/frontend/cypress/e2e/tab.cy.ts
+++ b/frontend/cypress/e2e/tab.cy.ts
@@ -1,6 +1,8 @@
 import * as users from '../fixtures/users.json';
 import { onlyOn } from '@cypress/skip-test';
 import CyOverviewPage from '../support/helper/pom-helper/pages/overviewPage';
+import { Unit } from '../../src/app/shared/types/enums/Unit';
+import KeyresultDetailPage from '../support/helper/pom-helper/pages/keyresultDetailPage';
 
 describe('Tab workflow tests', () => {
   let overviewPage: CyOverviewPage;
@@ -32,10 +34,14 @@ describe('Tab workflow tests', () => {
     cy.pressUntilContains('Logout', 'ArrowDown');
     focusedShouldHaveTestId('logout');
     cy.realPress('Escape');
+    tabAndCheck('quarterFilter', 'GJ');
+    tabAndCheck('objectiveSearch');
     cy.tabForward();
-    cy.focused().contains('GJ');
-    cy.tabForward();
-    cy.tabForward();
+    cy.focused()
+      .children('img')
+      .first()
+      .should('have.attr', 'src')
+      .and('match', /search-icon.svg/);
     cy.tabForward();
     cy.focused().contains('Alle');
   });
@@ -49,8 +55,8 @@ describe('Tab workflow tests', () => {
     tabAndCheck('add-keyResult', 'Key Result hinzufügen');
   });
 
-  describe('Objective forms', () => {
-    it('objective add', () => {
+  describe('Objective', () => {
+    it('should be able to tab objective dialog', () => {
       tabAndCheck('add-objective', 'Objective hinzufügen');
       cy.realPress('Enter');
       cy.contains('h2', 'Objective für');
@@ -64,7 +70,7 @@ describe('Tab workflow tests', () => {
       tabAndCheck('cancel');
     });
 
-    it('focus to three dot menu should be restored after edit objective', () => {
+    it('should focus three dot menu after edit objective', () => {
       overviewPage.getObjectiveByState('ongoing').focus();
       tabAndCheck('three-dot-menu');
       cy.realPress('Enter');
@@ -81,46 +87,242 @@ describe('Tab workflow tests', () => {
       focusedShouldHaveTestId('three-dot-menu');
     });
 
-    it('objective complete', () => {
+    it('should be able to complete and reopen objective', () => {
       overviewPage.getObjectiveByState('ongoing').focus();
       tabAndCheck('three-dot-menu');
       cy.realPress('Enter');
       tabToThreeDotMenuOption('Objective abschliessen');
       cy.contains('h2', 'Objective abschliessen ');
       focusedShouldHaveTestId('close-dialog');
-      cy.realPress('Tab');
+      cy.tabForward();
       cy.focused().contains('Objective erreicht');
+      cy.realPress('Enter');
+      cy.tabForward();
       cy.focused().contains('Objective nicht erreicht');
       tabAndCheck('completeComment');
-      cy.realType('description');
-      cy.realPress('Tab');
-      cy.focused().contains('Abbrechen');
-      tabAndCheck('submit', 'Speichern');
+      tabAndCheck('cancel', 'Abbrechen');
+      tabAndCheck('submit', 'Objective abschliessen');
+      cy.realPress('Enter');
+
+      focusedShouldHaveTestId('three-dot-menu');
+      cy.realPress('Enter');
+
+      tabToThreeDotMenuOption('Objective wiedereröffnen');
+      cy.contains('h2', 'Objective wiedereröffnen');
+      focusedShouldHaveTestId('close-dialog');
+      cy.contains('Soll dieses Objective wiedereröffnet werden?');
+      tabAndCheck('confirm-no', 'Nein');
+      tabAndCheck('confirm-yes', 'Ja');
       cy.realPress('Enter');
       focusedShouldHaveTestId('three-dot-menu');
     });
 
-    it('objective to draft', () => {
+    it('should be able to set objective to draft and publish it', () => {
       overviewPage.getObjectiveByState('ongoing').focus();
       tabAndCheck('three-dot-menu');
       cy.realPress('Enter');
       tabToThreeDotMenuOption('Objective als Draft speichern');
-      cy.contains('h2', 'Objective abschliessen ');
+      cy.contains('h2', 'Objective als Draft speichern');
       focusedShouldHaveTestId('close-dialog');
-      cy.realPress('Tab');
-      cy.focused().contains('Objective erreicht');
-      cy.focused().contains('Objective nicht erreicht');
-      tabAndCheck('completeComment');
-      cy.realType('description');
-      cy.realPress('Tab');
-      cy.focused().contains('Abbrechen');
-      tabAndCheck('submit', 'Speichern');
+      cy.contains('Soll dieses Objective als Draft gespeichert werden?');
+      tabAndCheck('confirm-no', 'Nein');
+      tabAndCheck('confirm-yes', 'Ja');
       cy.realPress('Enter');
+
       focusedShouldHaveTestId('three-dot-menu');
+      cy.realPress('Enter');
+
+      tabToThreeDotMenuOption('Objective veröffentlichen');
+      cy.contains('h2', 'Objective veröffentlichen');
+      focusedShouldHaveTestId('close-dialog');
+      cy.contains('Soll dieses Objective veröffentlicht werden?');
+      tabAndCheck('confirm-no', 'Nein');
+      tabAndCheck('confirm-yes', 'Ja');
+      cy.realPress('Enter');
+      focusedShouldHaveTestId('three-dot-menu');
+    });
+
+    it('should be able to open objective detail view', () => {
+      overviewPage.getObjectiveByState('ongoing').focus();
+      cy.realPress('Enter').tabForward();
+      focusedShouldHaveTestId('closeDrawer');
+      tabAndCheck('add-keyResult-objective-detail', 'Key Result hinzufügen');
+      tabAndCheck('edit-objective', 'Objective bearbeiten');
+    });
+  });
+
+  describe('Keyresult & Check-In', () => {
+    it('Should be able to tab Keyresult dialog', () => {
+      tabAndCheck('add-keyResult', 'Key Result hinzufügen');
+      cy.realPress('Enter');
+      focusedShouldHaveTestId('close-dialog');
+      tabAndCheck('titleInput');
+      cy.focused().type('Title');
+      tabAndCheck('unit');
+      tabAndCheck('baseline');
+      tabAndCheck('stretchGoal');
+      tabAndCheck('ownerInput');
+      tabAndCheck('descriptionInput');
+      tabAndCheck('actionInput');
+      tabAndCheck('add-action-plan-line', 'Weitere Action hinzufügen');
+      tabAndCheck('ordinalTab', 'Ordinal');
+      cy.realPress('Enter');
+      tabAndCheck('commitZone');
+      cy.focused().type('Commit');
+      tabAndCheck('targetZone');
+      cy.focused().type('Target');
+      tabAndCheck('stretchZone');
+      cy.focused().type('Stretch');
+      tabAndCheck('submit', 'Speichern');
+      tabAndCheck('saveAndNew', 'Speichern & Neu');
+      tabAndCheck('cancel', 'Abbrechen');
+    });
+
+    it('Should tab keyresult detail view', () => {
+      cy.getByTestId('key-result').first().focus();
+      cy.realPress('Enter').tabForward();
+      focusedShouldHaveTestId('close-drawer');
+      tabAndCheck('show-all-checkins', 'Alle Check-ins anzeigen');
+      cy.realPress('Enter');
+      cy.contains('Check-in History');
+      focusedShouldHaveTestId('close-dialog');
+      tabAndCheck('edit-check-in');
+      tabAndCheck('closeButton', 'Schliessen');
+      cy.realPress('Enter');
+      tabAndCheck('add-check-in', 'Check-in erfassen');
+      tabAndCheck('edit-keyResult', 'Key Result bearbeiten');
+    });
+
+    it('Should tab create-check-in metric', () => {
+      overviewPage
+        .addKeyresult()
+        .fillKeyresultTitle('A metric Keyresult for tabbing tests')
+        .withMetricValues(Unit.CHF, '10', '100')
+        .submit();
+      KeyresultDetailPage.do().visit('A metric Keyresult for tabbing tests');
+      tabAndCheck('add-check-in', 'Check-in erfassen');
+      cy.realPress('Enter');
+      cy.contains('Check-in erfassen');
+      focusedShouldHaveTestId('close-dialog');
+      tabAndCheck('changeInfo');
+      tabAndCheck('check-in-metric-value');
+      cy.focused().type('20');
+      tabAndCheck('initiatives');
+      cy.contains('5/10');
+      cy.tabForward();
+      cy.realPress('ArrowLeft');
+      cy.contains('4/10');
+      tabAndCheck('submit-check-in', 'Check-in speichern');
+      tabAndCheck('cancel', 'Abbrechen');
+    });
+
+    it('Should tab create-check-in ordinal', () => {
+      overviewPage
+        .addKeyresult()
+        .fillKeyresultTitle('A ordinal Keyresult for tabbing tests')
+        .withOrdinalValues('Commit', 'Target', 'Stretch')
+        .submit();
+      KeyresultDetailPage.do().visit('A ordinal Keyresult for tabbing tests');
+      tabAndCheck('add-check-in', 'Check-in erfassen');
+      cy.realPress('Enter');
+      cy.contains('Check-in erfassen');
+      focusedShouldHaveTestId('close-dialog');
+      tabAndCheck('changeInfo');
+      cy.tabForward();
+      cy.focused().closest('mat-radio-button').should('have.attr', 'data-testId', 'fail-radio');
+      cy.realPress('ArrowDown');
+      cy.focused().closest('mat-radio-button').should('have.attr', 'data-testId', 'commit-radio');
+      cy.realPress('ArrowDown');
+      cy.focused().closest('mat-radio-button').should('have.attr', 'data-testId', 'target-radio');
+      cy.realPress('ArrowDown');
+      cy.focused().closest('mat-radio-button').should('have.attr', 'data-testId', 'stretch-radio');
+      tabAndCheck('initiatives');
+      cy.contains('5/10');
+      cy.tabForward();
+      cy.realPress('ArrowLeft');
+      cy.contains('4/10');
+      tabAndCheck('submit-check-in', 'Check-in speichern');
+      tabAndCheck('cancel', 'Abbrechen');
+    });
+  });
+
+  describe('Team management', () => {
+    it('Should tab team management', () => {
+      tabAndCheck('team-management', 'Teamverwaltung');
+      cy.realPress('Enter');
+      tabAndCheck('routerLink-to-overview', 'Zurück zur OKR Übersicht');
+      tabAndCheck('teamManagementSearch');
+      tabAndCheck('add-team', 'Team erfassen');
+      tabAndCheck('all-teams-selector', 'Alle Teams (4)');
+      tabAndCheck('invite-member', 'Member registrieren');
+    });
+    it('Should tab create team', () => {
+      cy.getByTestId('team-management').click();
+      tabAndCheck('add-team');
+      cy.realPress('Enter');
+      cy.contains('Team erfassen');
+      focusedShouldHaveTestId('close-dialog');
+      tabAndCheck('add-team-name');
+      cy.focused().type('Name of new team');
+      tabAndCheck('safe', 'Speichern');
+      tabAndCheck('cancel', 'Abbrechen');
+    });
+    it('Should tab register member', () => {
+      cy.getByTestId('team-management').click();
+      tabAndCheck('invite-member');
+      cy.realPress('Enter');
+      cy.contains('Member registrieren');
+      focusedShouldHaveTestId('close-dialog');
+      tabAndCheck('new-member-first-name');
+      tabAndCheck('new-member-last-name');
+      tabAndCheck('email-col_0');
+      cy.tabForward();
+      cy.focused().closest('app-puzzle-icon-button').should('have.attr', 'icon', 'delete-icon.svg');
+      tabAndCheck('new-member-add-row', 'Weiterer Member hinzufügen');
+      tabAndCheck('invite', 'Einladen');
+      tabAndCheck('new-member-cancel', 'Abbrechen');
+    });
+    it('Should tab edit member', () => {
+      cy.getByTestId('team-management').click();
+      cy.pressUntilContains('Alice Wunderland', 'Tab');
+      cy.tabForward();
+      cy.realPress('Enter');
+      cy.tabForward();
+      focusedShouldHaveTestId('close-drawer');
+
+      // Field to toggle if user is OKR-Champion
+      cy.tabForward();
+      cy.focused().closest('app-puzzle-icon-button').should('have.attr', 'icon', 'edit.svg');
+      cy.realPress('Enter');
+      cy.tabForward();
+      tabAndCheck('close-drawer');
+      cy.tabForward();
+      cy.focused().closest('mat-checkbox').should('have.attr', 'data-testId', 'edit-okr-champion-checkbox');
+
+      // Field to edit role of assigned team
+      cy.tabForward();
+      cy.focused().closest('app-puzzle-icon-button').should('have.attr', 'icon', 'edit.svg');
+      cy.realPress('Enter');
+      cy.tabForward();
+      tabAndCheck('select-team-role', 'Team-Member');
+
+      // Button to delete assigned team
+      cy.tabForward();
+      cy.focused().closest('app-puzzle-icon-button').should('have.attr', 'icon', 'delete-icon.svg');
+
+      // Button to add user to another team
+      tabAndCheck('add-user');
+      cy.realPress('Enter');
+      cy.tabForward();
+      tabAndCheck('select-team-dropdown', '/BBT');
+      tabAndCheck('select-team-role', 'Team-Member');
+      tabAndCheck('add-user-to-team-save', 'Hinzufügen');
+      tabAndCheck('add-user-to-team-cancel', 'Abbrechen');
     });
   });
 });
+
 function tabToThreeDotMenuOption(name: string) {
-  cy.tabForwardUntil(`:contains('${name}')`);
+  cy.pressUntilContains(name, 'ArrowDown');
   cy.realPress('Enter');
 }
diff --git a/frontend/src/app/components/objective/objective.component.ts b/frontend/src/app/components/objective/objective.component.ts
index d67984a57b..d3e5d50d1d 100644
--- a/frontend/src/app/components/objective/objective.component.ts
+++ b/frontend/src/app/components/objective/objective.component.ts
@@ -49,7 +49,9 @@ export class ObjectiveComponent {
       .pipe(take(1))
       .subscribe((result) => {
         this.objectiveService.getFullObjective(objectiveMin.id).subscribe((objective) => {
-          menuEntry.afterAction(objective, result);
+          if (result) {
+            menuEntry.afterAction(objective, result);
+          }
           this.trigger?.focus();
         });
       });
diff --git a/frontend/src/app/shared/dialog/complete-dialog/complete-dialog.component.html b/frontend/src/app/shared/dialog/complete-dialog/complete-dialog.component.html
index e4eae92721..b3950a20a5 100644
--- a/frontend/src/app/shared/dialog/complete-dialog/complete-dialog.component.html
+++ b/frontend/src/app/shared/dialog/complete-dialog/complete-dialog.component.html
@@ -70,7 +70,7 @@ <h4 class="okr-form-label okr-form-col">Objective</h4>
       >
         Objective abschliessen
       </button>
-      <button color="primary" mat-button mat-dialog-close>Abbrechen</button>
+      <button color="primary" [attr.data-testId]="'cancel'" mat-button mat-dialog-close>Abbrechen</button>
     </div>
   </ng-container>
 </app-dialog-template-core>
diff --git a/frontend/src/app/team-management/add-user-team/add-user-team.component.html b/frontend/src/app/team-management/add-user-team/add-user-team.component.html
index 782618a801..b3cdb9f0a4 100644
--- a/frontend/src/app/team-management/add-user-team/add-user-team.component.html
+++ b/frontend/src/app/team-management/add-user-team/add-user-team.component.html
@@ -52,7 +52,9 @@
       <button [attr.data-testId]="'add-user-to-team-save'" (click)="save()" mat-flat-button color="primary">
         Hinzufügen
       </button>
-      <button class="ms-2" (click)="userTeam = undefined" mat-button>Abbrechen</button>
+      <button [attr.data-testId]="'add-user-to-team-cancel'" class="ms-2" (click)="userTeam = undefined" mat-button>
+        Abbrechen
+      </button>
     </div>
   </ng-container>
 </ng-container>
diff --git a/frontend/src/app/team-management/invite-user-dialog/invite-user-dialog.component.html b/frontend/src/app/team-management/invite-user-dialog/invite-user-dialog.component.html
index 74ffc40975..5eb72904dc 100644
--- a/frontend/src/app/team-management/invite-user-dialog/invite-user-dialog.component.html
+++ b/frontend/src/app/team-management/invite-user-dialog/invite-user-dialog.component.html
@@ -11,7 +11,7 @@
       </div>
     }
     <div class="okr-form-row">
-      <button (click)="addUser()" class="col-auto" color="primary" mat-button>
+      <button (click)="addUser()" class="col-auto" color="primary" mat-button [attr.data-testId]="'new-member-add-row'">
         <span class="d-flex align-items-center fw-bold">
           <img alt="Add User button" class="add-cross-button" src="/assets/icons/new-icon.svg" />
           Weiterer Member hinzufügen
@@ -24,7 +24,7 @@
       <button color="primary" [attr.data-testId]="'invite'" mat-flat-button type="submit" (click)="registerUsers()">
         Einladen
       </button>
-      <button color="primary" mat-button mat-dialog-close>Abbrechen</button>
+      <button color="primary" [attr.data-testId]="'new-member-cancel'" mat-button mat-dialog-close>Abbrechen</button>
     </div>
   </ng-container>
 </app-dialog-template-core>
diff --git a/frontend/src/app/team-management/new-user/new-user.component.html b/frontend/src/app/team-management/new-user/new-user.component.html
index c05f8b7764..662bd4a78b 100644
--- a/frontend/src/app/team-management/new-user/new-user.component.html
+++ b/frontend/src/app/team-management/new-user/new-user.component.html
@@ -11,6 +11,7 @@
         #firstInput
         [id]="'firstName-col_' + index"
         [name]="'firstName-col_' + index"
+        [attr.data-testId]="'new-member-first-name'"
       />
       <mat-error>
         @if (firstname.errors?.["required"] && triedToSubmit) {
@@ -30,6 +31,7 @@
         [name]="'lastname-col_' + index"
         class="value-field dialog-form-field"
         formControlName="lastname"
+        [attr.data-testId]="'new-member-last-name'"
       />
       <mat-error>
         @if (lastname.errors?.["required"] && triedToSubmit) {
diff --git a/frontend/src/app/team-management/team-list/team-list.component.html b/frontend/src/app/team-management/team-list/team-list.component.html
index 556e268ce9..f066fbc0fd 100644
--- a/frontend/src/app/team-management/team-list/team-list.component.html
+++ b/frontend/src/app/team-management/team-list/team-list.component.html
@@ -1,6 +1,10 @@
 <div>
   <mat-nav-list *ngIf="teams$ | async as teams">
-    <a mat-list-item routerLink="/team-management" [ngClass]="{ selected: selectedTeamId === undefined }"
+    <a
+      mat-list-item
+      routerLink="/team-management"
+      [attr.data-testId]="'all-teams-selector'"
+      [ngClass]="{ selected: selectedTeamId === undefined }"
       >Alle Teams ({{ teams.length }})</a
     >
     <a