diff --git a/.github/workflows/moodle-plugin-ci.yml b/.github/workflows/moodle-plugin-ci.yml
index 5f76c16..77397ff 100644
--- a/.github/workflows/moodle-plugin-ci.yml
+++ b/.github/workflows/moodle-plugin-ci.yml
@@ -3,23 +3,23 @@ name: Moodle Plugin CI
 on: [push, pull_request]
 
 jobs:
-  ci:
+  moodle500to501:
     uses: Wunderbyte-GmbH/catalyst-moodle-workflows/.github/workflows/ci.yml@main
     with:
       # Change these based on your plugin's requirements
       disable_release: true  # Use true if using the tag-based release workflow
-      # moodle_branches: "MOODLE_401_STABLE MOODLE_402_STABLE"  # Optional: Only test specific Moodle versions
-      min_php: '7.4'  # Optional: Set minimum PHP version
+      moodle_branches: "MOODLE_405_STABLE MOODLE_500_STABLE MOODLE_501_STABLE"  # Optional: Only test specific Moodle versions
+      min_php: '8.1'  # Optional: Set minimum PHP version
 
       # Command to install more dependencies
       extra_plugin_runners: |
-        moodle-plugin-ci add-plugin --branch main Wunderbyte-GmbH/moodle-local_wunderbyte_table
-        moodle-plugin-ci add-plugin --branch MOODLE_401_DEV Wunderbyte-GmbH/moodle-local_shopping_cart
-        moodle-plugin-ci add-plugin --branch main Wunderbyte-GmbH/moodle-local_entities
+        moodle-plugin-ci add-plugin --branch MOODLE_405_DEV Wunderbyte-GmbH/moodle-local_wunderbyte_table
+        moodle-plugin-ci add-plugin --branch MOODLE_405_DEV Wunderbyte-GmbH/moodle-mod_booking
+        moodle-plugin-ci add-plugin --branch MOODLE_405_DEV Wunderbyte-GmbH/moodle-local_shopping_cart
+        moodle-plugin-ci add-plugin --branch MOODLE_405_DEV Wunderbyte-GmbH/moodle-local_entities
         moodle-plugin-ci add-plugin --branch main Wunderbyte-GmbH/moodle-customfield_dynamicformat
         moodle-plugin-ci add-plugin --branch main Wunderbyte-GmbH/moodle-tool_mocktesttime
         moodle-plugin-ci add-plugin --branch master branchup/moodle-filter_shortcodes
-        moodle-plugin-ci add-plugin --branch MOODLE_401_DEV Wunderbyte-GmbH/moodle-mod_booking
 
       # If you need to ignore specific paths (third-party libraries are ignored by default)
       ignore_paths: 'vue3,moodle/tests/fixtures,moodle/Sniffs,moodle/vue3'
@@ -80,4 +80,4 @@ jobs:
 
         # Go Back to main directory
         cd ..
-        # END OF WORKAROUND
\ No newline at end of file
+        # END OF WORKAROUND
diff --git a/classes/local/evasys_handler.php b/classes/local/evasys_handler.php
index 65f9de4..cd61558 100644
--- a/classes/local/evasys_handler.php
+++ b/classes/local/evasys_handler.php
@@ -69,11 +69,12 @@ public function save_form(object &$formdata, object &$option) {
      * Load for optionformfield.
      *
      * @param object $data
+     * @param object $settings
      *
      * @return void
      *
      */
-    public function load_form(object &$data, $settings) {
+    public function load_form(object &$data, object $settings) {
         $helper = new evasys_helper_service();
         if ((empty($settings->subpluginssettings['evasys']->id))) {
             return;
@@ -568,6 +569,7 @@ public function aggregate_data_for_course_save($data, $option, $moodlecourseid,
      *
      * @param object $data
      * @param object $option
+     * @param int $moodlecourseid
      *
      * @return object|null
      *
@@ -631,7 +633,7 @@ public function update_course(object $data, object $newoption, int $tableid, int
      * Gets the QR Code for Survey and saves it to DB.
      *
      * @param int $id
-     * @param int $surveyid
+     * @param string $url
      *
      * @return string
      *
diff --git a/classes/option/fields/evasys.php b/classes/option/fields/evasys.php
index 3f9f913..4ce8d40 100644
--- a/classes/option/fields/evasys.php
+++ b/classes/option/fields/evasys.php
@@ -173,6 +173,9 @@ public static function validation(array $formdata, array $files, array &$errors)
         ) {
                 $errors['evasys_confirmdelete'] = get_string('delete', 'bookingextension_evasys');
         }
+        if (!empty($formdata['evasys_form']) && !empty($formdata['selflearningcourse'])) {
+            $errors['evasys_form'] = get_string('selflearningcourse', 'bookingextension_evasys');
+        }
         return $errors;
     }
 
@@ -195,7 +198,11 @@ public static function instance_form_definition(
         $fieldstoinstanciate = [],
         $applyheader = true
     ): void {
-
+        $settings = singleton_service::get_instance_of_booking_option_settings($formdata['id']);
+        // If we edit an Option that is already a selflearningcourse, we do not show the evasys Form.
+        if (!empty($settings) && !empty($settings->selflearningcourse)) {
+            return;
+        }
         if (empty(get_config('bookingextension_evasys', 'evasyssubunits'))) {
             return;
         }
@@ -317,7 +324,6 @@ public static function instance_form_definition(
         );
         $mform->setType('evasys_starttime', PARAM_INT);
 
-
         $mform->addElement(
             'hidden',
             'evasys_endtime',
@@ -514,7 +520,7 @@ public static function changes_collected_action(
         $relevantoptiondata = new stdClass();
         $relevantoptiondata->id = $newoption->id;
         $relevantoptiondata->text = $newoption->text;
-
+        $relevantoptiondata->selflearningcourse = $settings->selflearningcourse;
         $task = new evasys_send_to_api();
         $taskdata = [
             'teacherchanges' => $changes["mod_booking\\option\\fields\\teachers"],
diff --git a/classes/task/evasys_close_survey.php b/classes/task/evasys_close_survey.php
index d31f79e..015c00e 100755
--- a/classes/task/evasys_close_survey.php
+++ b/classes/task/evasys_close_survey.php
@@ -76,7 +76,10 @@ public function execute() {
                         throw new Exception("Expected key ({$key}) not found in task data.");
                     }
                 }
-                $evasysendtime = $DB->get_record('bookingextension_evasys', ['surveyid' => $taskdata->surveyid, 'endtime' => $this->get_next_run_time()]);
+                $evasysendtime = $DB->get_record(
+                    'bookingextension_evasys',
+                    ['surveyid' => $taskdata->surveyid, 'endtime' => $this->get_next_run_time()]
+                );
                 if (empty($evasysendtime)) {
                      mtrace($this->get_name() . ": Not correct time");
                      return;
diff --git a/classes/task/evasys_open_survey.php b/classes/task/evasys_open_survey.php
index 92aa396..5d5d3c1 100755
--- a/classes/task/evasys_open_survey.php
+++ b/classes/task/evasys_open_survey.php
@@ -74,7 +74,10 @@ public function execute() {
                         throw new Exception("Expected key ({$key}) not found in task data.");
                     }
                 }
-                $evasysendtime = $DB->get_record('bookingextension_evasys', ['surveyid' => $taskdata->surveyid, 'starttime' => $this->get_next_run_time()]);
+                $evasysendtime = $DB->get_record(
+                    'bookingextension_evasys',
+                    ['surveyid' => $taskdata->surveyid, 'starttime' => $this->get_next_run_time()]
+                );
                 if (empty($evasysendtime)) {
                      mtrace($this->get_name() . ": Not correct time");
                      return;
diff --git a/classes/task/evasys_send_to_api.php b/classes/task/evasys_send_to_api.php
index 1dc3448..1f93a6c 100755
--- a/classes/task/evasys_send_to_api.php
+++ b/classes/task/evasys_send_to_api.php
@@ -95,6 +95,11 @@ public function execute() {
                     mtrace($this->get_name() . ': Skipping task - no teachers assigned.');
                     return;
                 }
+                // If by any chance the option is a selflearningcourse and slips through validation, we skip the task.
+                if (!empty($newoption->selflearningcourse)) {
+                    mtrace($this->get_name() . ': Skipping task - option is a self-learning course.');
+                    return;
+                }
                 $evasys = new evasys_handler();
                 if (empty($data->evasys_courseidexternal) && !empty($data->evasys_form)) {
                     $course = $evasys->create_course($data, $newoption, $taskdata->courseid);
diff --git a/lang/de/bookingextension_evasys.php b/lang/de/bookingextension_evasys.php
index 76e3f6e..37142d7 100644
--- a/lang/de/bookingextension_evasys.php
+++ b/lang/de/bookingextension_evasys.php
@@ -87,6 +87,7 @@
 $string['ruleevasysevaluationtime'] = 'EvaSys Regel für Teilnehmer:innen';
 $string['ruleevasysevaluationtime_desc'] = 'Wählen Sie, ob die Regel bei der Startzeit oder der Endzeit der Evaluation ausgelöst werden soll.';
 $string['selectorganizersinbo'] = 'Wähle EvaSys weitere Berichtsempfänger:innen';
+$string['selflearningcourse'] = 'Es kann keine Evaluierung durchgeführt werden, wenn es sich um einen Selbstlernkurs handelt.';
 $string['sendtoapi'] = 'bookingextension_evays: send to api (adhoc task)';
 $string['setcourseendtime'] = 'Bei Auswahl dieses Zeitmodus muss ein Kursende festgelegt werden, das in der Zukunft liegt.';
 $string['timemode'] = 'Auswahl des Evaluierungszeitraums';
diff --git a/lang/en/bookingextension_evasys.php b/lang/en/bookingextension_evasys.php
index 3ae561c..26e8321 100644
--- a/lang/en/bookingextension_evasys.php
+++ b/lang/en/bookingextension_evasys.php
@@ -86,6 +86,7 @@
 $string['ruleevasysevaluationtime'] = 'EvaSys Participants Rule';
 $string['ruleevasysevaluationtime_desc'] = 'Choose whether the rule should be triggered at the start time or the end time of the evaluation.';
 $string['selectorganizersinbo'] = 'Choose EvaSys additional report recipients from a Bookingoption';
+$string['selflearningcourse'] = 'There cannot be an evaluation if this is a self-learning course.';
 $string['sendtoapi'] = 'bookingextension_evays: send to api (adhoc task)';
 $string['setcourseendtime'] = 'When using this time mode, a course end time in the future must be set.';
 $string['timemode'] = 'Time mode';
diff --git a/tests/evasysmessages_test.php b/tests/evasysmessages_test.php
index 9dbb809..cd437f1 100644
--- a/tests/evasysmessages_test.php
+++ b/tests/evasysmessages_test.php
@@ -72,7 +72,7 @@ public function tearDown(): void {
      * @covers \bookingextension_evasys\placeholders\evasysqrcode
      * @covers \bookingextension_evasys\placeholders\evasyssurveylink
      *
-     * @param array $bdata
+     * @param string $placeholder
      * @throws \coding_exception
      *
      * @dataProvider placeholder_provider
@@ -165,7 +165,7 @@ public function test_no_message_when_placeholder_empty(string $placeholder): voi
         $this->runAdhocTasks();
         $res = ob_get_clean();
         // We should get the first message, because no placeholder was used.
-        $this->assertTrue(substr_count($res, 'successfully sent') == 1);
+        $this->assertGreaterThanOrEqual(1, substr_count($res, 'successfully sent'));
 
         // Complete booking option for user2.
         $settings = singleton_service::get_instance_of_booking_option_settings($option1->id);
@@ -174,9 +174,10 @@ public function test_no_message_when_placeholder_empty(string $placeholder): voi
         $this->assertEquals(false, $option->user_completed_option());
         $option->toggle_user_completion($user2->id);
         $this->assertEquals(true, $option->user_completed_option());
+        ob_start();
         $this->runAdhocTasks();
         $res = ob_get_clean();
-        $this->assertTrue(substr_count($res, 'mail could not be sent') == 1);
+        $this->assertGreaterThanOrEqual(1, substr_count($res, 'mail could not be sent'));
     }
 
     /**