diff --git a/lib/Settings/Personal.php b/lib/Settings/Personal.php
index 2e45357..1711323 100644
--- a/lib/Settings/Personal.php
+++ b/lib/Settings/Personal.php
@@ -10,6 +10,7 @@
 
 use OCA\Absence\Service\ConfigService;
 use OCA\Absence\Service\PersonalDefaultsService;
+use OCP\App\IAppManager;
 use OCP\AppFramework\Http\TemplateResponse;
 use OCP\AppFramework\Services\IInitialState;
 use OCP\IUserSession;
@@ -21,6 +22,7 @@ public function __construct(
 		private IInitialState $initialState,
 		private PersonalDefaultsService $personalDefaults,
 		private IUserSession $userSession,
+		private IAppManager $appManager,
 	) {
 	}
 
@@ -33,7 +35,14 @@ public function getForm(): TemplateResponse {
 	}
 
 	#[\Override]
-	public function getSection(): string {
+	public function getSection(): ?string {
+		// The app may be restricted to some groups, but its settings are still
+		// registered for everyone. Hide the form from users without access, as
+		// the API would reject them anyway.
+		$user = $this->userSession->getUser();
+		if ($user === null || !$this->appManager->isEnabledForUser(ConfigService::APP_ID, $user)) {
+			return null;
+		}
 		// Append to the built-in Availability page (/settings/user/availability)
 		// rather than a separate Absence section.
 		return 'availability';
diff --git a/tests/Unit/Settings/PersonalTest.php b/tests/Unit/Settings/PersonalTest.php
new file mode 100644
index 0000000..c3ce3ab
--- /dev/null
+++ b/tests/Unit/Settings/PersonalTest.php
@@ -0,0 +1,66 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Absence\Tests\Unit\Settings;
+
+use OCA\Absence\Service\PersonalDefaultsService;
+use OCA\Absence\Settings\Personal;
+use OCP\App\IAppManager;
+use OCP\AppFramework\Services\IInitialState;
+use OCP\IUser;
+use OCP\IUserSession;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+
+class PersonalTest extends TestCase {
+	private IUserSession&MockObject $userSession;
+	private IAppManager&MockObject $appManager;
+	private Personal $form;
+
+	protected function setUp(): void {
+		parent::setUp();
+		$this->userSession = $this->createMock(IUserSession::class);
+		$this->appManager = $this->createMock(IAppManager::class);
+		$this->form = new Personal(
+			$this->createMock(IInitialState::class),
+			$this->createMock(PersonalDefaultsService::class),
+			$this->userSession,
+			$this->appManager,
+		);
+	}
+
+	private function loginUser(): IUser&MockObject {
+		$user = $this->createMock(IUser::class);
+		$this->userSession->method('getUser')->willReturn($user);
+		return $user;
+	}
+
+	public function testSectionIsAvailabilityWhenAppIsEnabledForTheUser(): void {
+		$user = $this->loginUser();
+		$this->appManager->expects($this->once())
+			->method('isEnabledForUser')
+			->with('absence', $user)
+			->willReturn(true);
+
+		$this->assertSame('availability', $this->form->getSection());
+	}
+
+	public function testNoSectionWhenAppIsNotEnabledForTheUser(): void {
+		$this->loginUser();
+		$this->appManager->method('isEnabledForUser')->willReturn(false);
+
+		$this->assertNull($this->form->getSection());
+	}
+
+	public function testNoSectionWithoutAUser(): void {
+		$this->userSession->method('getUser')->willReturn(null);
+		$this->appManager->expects($this->never())->method('isEnabledForUser');
+
+		$this->assertNull($this->form->getSection());
+	}
+}