diff --git a/src/Action/ConvertMolliePaymentAction.php b/src/Action/ConvertMolliePaymentAction.php
index cb3a5e98..421255ee 100644
--- a/src/Action/ConvertMolliePaymentAction.php
+++ b/src/Action/ConvertMolliePaymentAction.php
@@ -112,7 +112,10 @@ public function execute($request): void
             $cartToken = $paymentOptions['cartToken'];
             $saveCardInfo = $paymentOptions['saveCardInfo'];
             $useSavedCards = $paymentOptions['useSavedCards'];
-            $selectedIssuer = PaymentMethod::IDEAL === $paymentMethod ? $paymentOptions['issuers']['id'] : null;
+            $selectedIssuer = null;
+            if (PaymentMethod::IDEAL === $paymentMethod && null !== $paymentOptions['issuers']) {
+                $selectedIssuer = $paymentOptions['issuers']['id'];
+            }
         }
 
         /** @var MollieGatewayConfigInterface $method */
diff --git a/src/DependencyInjection/SyliusMollieExtension.php b/src/DependencyInjection/SyliusMollieExtension.php
index cbbcb349..1938b7ce 100644
--- a/src/DependencyInjection/SyliusMollieExtension.php
+++ b/src/DependencyInjection/SyliusMollieExtension.php
@@ -29,10 +29,11 @@ public function prepend(ContainerBuilder $container): void
             return;
         }
 
+        $doctrineConfig = $container->getExtensionConfig('doctrine_migrations');
         $container->prependExtensionConfig('doctrine_migrations', [
-            'migrations_paths' => [
+            'migrations_paths' => \array_merge(\array_pop($doctrineConfig)['migrations_paths'] ?? [], [
                 'SyliusMolliePlugin\Migrations' => __DIR__ . '/../Migrations',
-            ],
+            ]),
         ]);
 
         $container->prependExtensionConfig('sylius_labs_doctrine_migrations_extra', [
diff --git a/src/Payments/Methods/KlarnaOne.php b/src/Payments/Methods/KlarnaOne.php
new file mode 100644
index 00000000..6d07a9fb
--- /dev/null
+++ b/src/Payments/Methods/KlarnaOne.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace SyliusMolliePlugin\Payments\Methods;
+
+use Mollie\Api\Types\PaymentMethod;
+
+final class KlarnaOne extends AbstractMethod
+{
+    public function getMethodId(): string
+    {
+        return PaymentMethod::KLARNA_ONE;
+    }
+
+    public function getPaymentType(): string
+    {
+        return self::ORDER_API;
+    }
+}
diff --git a/src/Payments/MethodsInterface.php b/src/Payments/MethodsInterface.php
index d423d6a7..d6488450 100755
--- a/src/Payments/MethodsInterface.php
+++ b/src/Payments/MethodsInterface.php
@@ -19,6 +19,7 @@
 use SyliusMolliePlugin\Payments\Methods\Ideal;
 use SyliusMolliePlugin\Payments\Methods\In3;
 use SyliusMolliePlugin\Payments\Methods\Kbc;
+use SyliusMolliePlugin\Payments\Methods\KlarnaOne;
 use SyliusMolliePlugin\Payments\Methods\Klarnapaylater;
 use SyliusMolliePlugin\Payments\Methods\KlarnaPayNow;
 use SyliusMolliePlugin\Payments\Methods\Klarnasliceit;
@@ -43,6 +44,7 @@ interface MethodsInterface
         Giropay::class,
         Ideal::class,
         Kbc::class,
+        KlarnaOne::class,
         Klarnapaylater::class,
         Klarnasliceit::class,
         KlarnaPayNow::class,
diff --git a/src/Payments/PaymentTerms/Options.php b/src/Payments/PaymentTerms/Options.php
index 80d8367d..0f66921b 100644
--- a/src/Payments/PaymentTerms/Options.php
+++ b/src/Payments/PaymentTerms/Options.php
@@ -72,6 +72,7 @@ public static function getLogLevels(): array
     public static function getOnlyOrderAPIMethods(): array
     {
         return [
+            PaymentMethod::KLARNA_ONE,
             PaymentMethod::KLARNA_PAY_NOW,
             PaymentMethod::KLARNA_PAY_LATER,
             PaymentMethod::KLARNA_SLICE_IT,
diff --git a/tests/Application/templates/bundles/SyliusAdminBundle/PaymentMethod/_mollieMethodsForm.html.twig b/tests/Application/templates/bundles/SyliusAdminBundle/PaymentMethod/_mollieMethodsForm.html.twig
index 7787c381..5f8597ed 100644
--- a/tests/Application/templates/bundles/SyliusAdminBundle/PaymentMethod/_mollieMethodsForm.html.twig
+++ b/tests/Application/templates/bundles/SyliusAdminBundle/PaymentMethod/_mollieMethodsForm.html.twig
@@ -1,5 +1,6 @@
 {% set mealvouchersId = constant('SyliusMolliePlugin\\Payments\\Methods\\MealVoucher::MEAL_VOUCHERS') %}
 {% set applePay = constant('Mollie\\Api\\Types\\PaymentMethod::APPLEPAY') %}
+{% set klarnaOne = constant('Mollie\\Api\\Types\\PaymentMethod::KLARNA_ONE') %}
 {% set klarnaPayLater = constant('Mollie\\Api\\Types\\PaymentMethod::KLARNA_PAY_LATER') %}
 {% set klarnaSliceIt = constant('Mollie\\Api\\Types\\PaymentMethod::KLARNA_SLICE_IT') %}
 {% set billie = constant('Mollie\\Api\\Types\\PaymentMethod::BILLIE') %}
@@ -133,6 +134,7 @@
                             <div class="twelve wide field">
                                 {% if
                                     methodForm.vars.value.methodId == mealvouchersId or
+                                    methodForm.vars.value.methodId == klarnaOne or
                                     methodForm.vars.value.methodId == klarnaPayLater or
                                     methodForm.vars.value.methodId == klarnaSliceIt or
                                     methodForm.vars.value.methodId == billie or