diff --git a/mod/quiz/classes/notification_helper.php b/mod/quiz/classes/notification_helper.php
index 4f4982d2fd5..33ad9910ef3 100644
--- a/mod/quiz/classes/notification_helper.php
+++ b/mod/quiz/classes/notification_helper.php
@@ -44,11 +44,14 @@ class notification_helper {
 
         $sql = "SELECT DISTINCT q.id
                   FROM {quiz} q
+                  JOIN {course} c ON q.course = c.id
                   JOIN {course_modules} cm ON q.id = cm.instance
                   JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
              LEFT JOIN {quiz_overrides} qo ON q.id = qo.quiz
                  WHERE (q.timeopen < :futuretime OR qo.timeopen < :qo_futuretime)
-                   AND (q.timeopen > :timenow OR qo.timeopen > :qo_timenow)";
+                   AND (q.timeopen > :timenow OR qo.timeopen > :qo_timenow)
+                   AND cm.visible = 1
+                   AND c.visible = 1";
 
         $params = [
             'timenow' => $timenow,
@@ -79,6 +82,10 @@ class notification_helper {
             userfields: 'u.id, u.firstname',
         );
 
+        // Filter a list of users who meet the availability conditions.
+        $info = new \core_availability\info_module($quizobj->get_cm());
+        $users = $info->filter_user_list($users);
+
         // Check for any override dates.
         $overrides = $quizobj->get_override_manager()->get_all_overrides();
 
diff --git a/mod/quiz/tests/notification_helper_test.php b/mod/quiz/tests/notification_helper_test.php
index 3aade56e34a..1e0e8051b6a 100644
--- a/mod/quiz/tests/notification_helper_test.php
+++ b/mod/quiz/tests/notification_helper_test.php
@@ -78,6 +78,7 @@ final class notification_helper_test extends \advanced_testcase {
      * Test getting users within a quiz that are within our date range.
      */
     public function test_get_users_within_quiz(): void {
+        global $DB;
         $this->resetAfterTest();
         $generator = $this->getDataGenerator();
         $helper = \core\di::get(notification_helper::class);
@@ -148,6 +149,32 @@ final class notification_helper_test extends \advanced_testcase {
 
         // User5 should not be in the returned users because they are a teacher.
         $this->assertArrayNotHasKey($user5->id, $users);
+
+        // Let's add some availability conditions.
+        $availability =
+        [
+            'op' => '&',
+            'showc' => [true],
+            'c' => [
+                [
+                    'type' => 'group',
+                    'id' => (int)$group->id,
+                ],
+            ],
+        ];
+        $cm = get_coursemodule_from_instance('quiz', $quiz->id, $course->id);
+        $DB->set_field('course_modules', 'availability', json_encode($availability), ['id' => $cm->id]);
+
+        // Rebuild course cache to apply changes.
+        rebuild_course_cache($course->id, true);
+
+        // Get the users after availability conditions of the given quiz.
+        $users = notification_helper::get_users_within_quiz($quiz->id);
+
+        // Returns only users matching availability conditions who are in the specified group.
+        $this->assertCount(2, $users);
+        ksort($users);
+        $this->assertEquals([$user2->id, $user3->id], array_keys($users));
     }
 
     /**
@@ -220,6 +247,27 @@ final class notification_helper_test extends \advanced_testcase {
         // Clear sink.
         $sink->clear();
 
+        // Let's modify the 'timeopen' one more time and change the visibility.
+        $cm = get_coursemodule_from_instance('quiz', $quiz->id, $course->id);
+        $DB->set_field('course_modules', 'visible', 0, ['id' => $cm->id]);
+
+        $updatedata = new \stdClass();
+        $updatedata->id = $quiz->id;
+        $updatedata->timeopen = $timeopen + DAYSECS;
+        $DB->update_record('quiz', $updatedata);
+
+        // Run the tasks again.
+        $this->run_notification_helper_tasks();
+
+        // There should not be a new notification because the quiz is not visible.
+        $this->assertCount(0, $sink->get_messages_by_component('mod_quiz'));
+
+        // Set back the visibility.
+        $DB->set_field('course_modules', 'visible', 1, ['id' => $cm->id]);
+
+        // Clear sink.
+        $sink->clear();
+
         // Let's modify the 'timeopen' one more time.
         $updatedata = new \stdClass();
         $updatedata->id = $quiz->id;