diff --git a/config/services.yaml b/config/services.yaml
index 0c126bb..a5e2400 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -17,6 +17,7 @@ services:
             $xmlDump: '@xml_dump.storage'
             $travelInfoBaseUrl: '%env(APP_TRAVEL_INFO_BASE_URL)%'
             $logger: '@monolog.logger.core'
+            $environment: '%kernel.environment%'
 
     # makes classes in src/ available to be used as services
     # this creates a service per class whose id is the fully-qualified class name
diff --git a/src/BusProNet/ApiClient.php b/src/BusProNet/ApiClient.php
index 0ba3f43..eae914e 100644
--- a/src/BusProNet/ApiClient.php
+++ b/src/BusProNet/ApiClient.php
@@ -222,6 +222,8 @@ class ApiClient
      */
     public function createBookingInquiry(BookingDto $bookingDto, bool $debug = false): Notification|BookingResponse
     {
+        // Forcibly override booking status to generate inquiry payload
+        $bookingDto->bookingStatus = 'A';
         $payload = $this->bookingDataProcessor->createBookingRequestPayload($bookingDto, 'Anfrage');
 
         $data = [
diff --git a/src/Controller/Booking/Create/Step3Controller.php b/src/Controller/Booking/Create/Step3Controller.php
index 0dd3a61..8ba2130 100644
--- a/src/Controller/Booking/Create/Step3Controller.php
+++ b/src/Controller/Booking/Create/Step3Controller.php
@@ -66,8 +66,7 @@ class Step3Controller extends AbstractController
 
         if (true === $form->isSubmitted() && true === $form->isValid()) {
             try {
-                // Validate booking data with API (inquiry)
-                $bookingCreateDto->bookingStatus = 'A';
+                // Validate booking data with API by submitting an inquiry booking
                 $inquiryResponse = $this->apiClient->createBookingInquiry($bookingCreateDto);
 
                 if ($inquiryResponse instanceof Notification) {
diff --git a/src/Twig/AppExtension.php b/src/Twig/AppExtension.php
index 9ebfcbe..713775c 100644
--- a/src/Twig/AppExtension.php
+++ b/src/Twig/AppExtension.php
@@ -26,6 +26,7 @@ class AppExtension extends AbstractExtension
         return [
             new TwigFunction('icon', [AppRuntime::class, 'renderIcon'], ['needs_environment' => true, 'is_safe' => ['html']]),
             new TwigFunction('is_participant_eligible', [AppRuntime::class, 'isParticipantEligible']),
+            new TwigFunction('qa_attribute', [AppRuntime::class, 'renderQaAttribute'], ['is_safe' => ['html']]),
         ];
     }
 }
diff --git a/src/Twig/AppRuntime.php b/src/Twig/AppRuntime.php
index c98bdab..25d35c0 100644
--- a/src/Twig/AppRuntime.php
+++ b/src/Twig/AppRuntime.php
@@ -15,6 +15,7 @@ class AppRuntime implements RuntimeExtensionInterface
         private readonly IntlExtension $intlExtension,
         private readonly CountryDataProvider $countryDataProvider,
         private readonly ParticipantEligibilityService $participantEligibilityService,
+        private readonly string $environment,
     ) {
     }
 
@@ -101,4 +102,25 @@ class AppRuntime implements RuntimeExtensionInterface
     {
         return $this->participantEligibilityService->isParticipantEligible($bookingDto, $participantIndex);
     }
+
+    /**
+     * Renders a QA attribute for testing purposes.
+     *
+     * @param string      $label The label for the QA attribute
+     * @param string|null $value The value for the QA attribute
+     *
+     * @return string The rendered QA attribute
+     */
+    public function renderQaAttribute(string $label, ?string $value = null): string
+    {
+        if ('prod' === $this->environment) {
+            return '';
+        }
+
+        if (null === $value) {
+            return sprintf(' data-qa-%s', strtolower($label));
+        }
+
+        return sprintf(' data-qa-%s="%s"', strtolower($label), $value);
+    }
 }
diff --git a/templates/booking/create/step_1.html.twig b/templates/booking/create/step_1.html.twig
index 2473647..949a7f4 100644
--- a/templates/booking/create/step_1.html.twig
+++ b/templates/booking/create/step_1.html.twig
@@ -36,7 +36,7 @@
                                 'attr': {
                                     'hx-post': path('app_booking_create_step_1_refresh'),
                                     'hx-swap': 'none',
-                                    'hx-trigger': 'change'
+                                    'hx-trigger': 'change',
                                 }
                             }) }}
                         {% endfor %}