diff --git a/src/Spryker/Shared/CheckoutRestApi/Transfer/checkout_rest_api.transfer.xml b/src/Spryker/Shared/CheckoutRestApi/Transfer/checkout_rest_api.transfer.xml
index 638eff0..12e63db 100644
--- a/src/Spryker/Shared/CheckoutRestApi/Transfer/checkout_rest_api.transfer.xml
+++ b/src/Spryker/Shared/CheckoutRestApi/Transfer/checkout_rest_api.transfer.xml
@@ -86,6 +86,29 @@
         <property name="paymentMethodName" type="string"/>
         <property name="paymentProviderName" type="string"/>
         <property name="requiredRequestData" type="array" singular="requiredRequestData"/>
+        <property name="paymentMethodAppConfiguration" type="PaymentMethodAppConfiguration"/>
+    </transfer>
+
+    <transfer name="PaymentMethodAppConfiguration" strict="true">
+        <property name="baseUrl" type="string"/>
+        <property name="endpoints" type="Endpoint[]" singular="endpoint"/>
+        <property name="checkoutConfiguration" type="CheckoutConfiguration"/>
+    </transfer>
+
+    <transfer name="Endpoint" strict="true">
+        <property name="name" type="string"/>
+        <property name="path" type="string"/>
+    </transfer>
+
+    <transfer name="CheckoutConfiguration" strict="true">
+        <property name="strategy" type="string"/>
+        <property name="scripts" type="Script[]" singular="script"/>
+        <property name="paymentServiceProviderData" type="array" singular="paymentServiceProviderDatum" associative="true"/>
+    </transfer>
+
+    <transfer name="Script" strict="true">
+        <property name="url" type="string"/>
+        <property name="queryParams" type="array" singular="queryParam" associative="true"/>
     </transfer>
 
     <transfer name="RestShipmentMethod">
diff --git a/src/Spryker/Zed/CheckoutRestApi/Business/Checkout/Quote/QuoteReader.php b/src/Spryker/Zed/CheckoutRestApi/Business/Checkout/Quote/QuoteReader.php
index df12bd9..9bbee96 100644
--- a/src/Spryker/Zed/CheckoutRestApi/Business/Checkout/Quote/QuoteReader.php
+++ b/src/Spryker/Zed/CheckoutRestApi/Business/Checkout/Quote/QuoteReader.php
@@ -60,7 +60,7 @@ public function findCustomerQuoteByUuid(RestCheckoutRequestAttributesTransfer $r
     protected function createQuoteTransfer(
         RestCheckoutRequestAttributesTransfer $restCheckoutRequestAttributesTransfer
     ): QuoteTransfer {
-        $customerTransfer = (new CustomerTransfer())->fromArray($restCheckoutRequestAttributesTransfer->getCustomer()->toArray(), true);
+        $customerTransfer = (new CustomerTransfer())->fromArray($restCheckoutRequestAttributesTransfer->getCustomer()->modifiedToArray(), true);
 
         return (new QuoteTransfer())
             ->setUuid($restCheckoutRequestAttributesTransfer->getIdCart())