diff --git a/src/CartManager/AbstractCart.php b/src/CartManager/AbstractCart.php
index 92144864..a159bf82 100644
--- a/src/CartManager/AbstractCart.php
+++ b/src/CartManager/AbstractCart.php
@@ -81,7 +81,7 @@ abstract protected function getCartCheckoutDataClassName(): string;
      * @param AbstractSetProductEntry[] $subProducts
      *
      */
-    public function addItem(CheckoutableInterface $product, int $count, ?string $itemKey = null, bool $replace = false, array $params = [], array $subProducts = [], ?string $comment = null): string
+    public function addItem(CheckoutableInterface $product, int $count, ?string $itemKey = null, bool $replace = false, array $customProperties = [], array $subProducts = [], ?string $comment = null): string
     {
         if (empty($itemKey)) {
             $itemKey = (string) $product->getId();
@@ -91,7 +91,7 @@ public function addItem(CheckoutableInterface $product, int $count, ?string $ite
             }
         }
 
-        return $this->updateItem($itemKey, $product, $count, $replace, $params, $subProducts, $comment);
+        return $this->updateItem($itemKey, $product, $count, $replace, $customProperties, $subProducts, $comment);
     }
 
     /**
@@ -99,7 +99,7 @@ public function addItem(CheckoutableInterface $product, int $count, ?string $ite
      * @param AbstractSetProductEntry[] $subProducts
      *
      */
-    public function updateItem(string $itemKey, CheckoutableInterface $product, int $count, bool $replace = false, array $params = [], array $subProducts = [], ?string $comment = null): string
+    public function updateItem(string $itemKey, CheckoutableInterface $product, int $count, bool $replace = false, array $customProperties = [], array $subProducts = [], ?string $comment = null): string
     {
         //load items first in order to lazyload items (if they are lazy loaded)
         $this->getItems();
@@ -143,9 +143,7 @@ public function updateItem(string $itemKey, CheckoutableInterface $product, int
             $item->setSubItems($subItems);
         }
 
-        if (method_exists($item, 'setCustomProperties')) {
-            $item->setCustomProperties($params);
-        }
+        $item->setCustomProperties($customProperties);
 
         $this->items[$itemKey] = $item;
 
diff --git a/src/CartManager/AbstractCartItem.php b/src/CartManager/AbstractCartItem.php
index 11b5f220..6a24b0f0 100644
--- a/src/CartManager/AbstractCartItem.php
+++ b/src/CartManager/AbstractCartItem.php
@@ -53,6 +53,8 @@ abstract class AbstractCartItem extends \Pimcore\Model\AbstractModel implements
      */
     protected ?int $addedDateTimestamp = null;
 
+    protected array $customProperties = [];
+
     public function __construct()
     {
         $this->setAddedDate(new \DateTime());
@@ -292,15 +294,14 @@ public function setIsLoading(bool $isLoading): void
     /**
      * Sets custom properties to CartItem when provided in AbstractCart::addItem
      *
-     *
      */
-    public function setCustomProperties(array $params): void
+    public function setCustomProperties(array $customProperties): void
     {
-        foreach ($params as $key => $value) {
-            $method = 'set' . ucfirst($key);
-            if (method_exists($this, $method)) {
-                $this->{$method}($value);
-            }
-        }
+        $this->customProperties = $customProperties;
+    }
+
+    public function getCustomProperties(): array
+    {
+        return $this->customProperties;
     }
 }
diff --git a/src/CartManager/CartInterface.php b/src/CartManager/CartInterface.php
index ed07eedf..88063c9d 100644
--- a/src/CartManager/CartInterface.php
+++ b/src/CartManager/CartInterface.php
@@ -64,20 +64,20 @@ public function getGiftItem(string $itemKey): ?CartItemInterface;
 
     /**
      * @param bool $replace replace if item with same key exists
-     * @param array $params optional additional item information
+     * @param array $customProperties optional additional item information
      * @param AbstractSetProductEntry[] $subProducts
      *
      * @return string $itemKey
      */
-    public function addItem(CheckoutableInterface $product, int $count, ?string $itemKey = null, bool $replace = false, array $params = [], array $subProducts = [], ?string $comment = null): string;
+    public function addItem(CheckoutableInterface $product, int $count, ?string $itemKey = null, bool $replace = false, array $customProperties = [], array $subProducts = [], ?string $comment = null): string;
 
     /**
      * @param bool $replace replace if item with same key exists
-     * @param array $params optional additional item information
+     * @param array $customProperties optional additional item information
      *
      * @return string $itemKey
      */
-    public function updateItem(string $itemKey, CheckoutableInterface $product, int $count, bool $replace = false, array $params = [], array $subProducts = [], ?string $comment = null): string;
+    public function updateItem(string $itemKey, CheckoutableInterface $product, int $count, bool $replace = false, array $customProperties = [], array $subProducts = [], ?string $comment = null): string;
 
     /**
      * updates count of specific cart item
diff --git a/src/CartManager/CartItemInterface.php b/src/CartManager/CartItemInterface.php
index 42fe324d..eb5d4cee 100644
--- a/src/CartManager/CartItemInterface.php
+++ b/src/CartManager/CartItemInterface.php
@@ -97,4 +97,8 @@ public function setAddedDateTimestamp(int $time): void;
      *
      */
     public function getName(): string;
+
+    public function getCustomProperties(): array;
+
+    public function setCustomProperties(array $customProperties): void;
 }
diff --git a/src/CartManager/CartManagerInterface.php b/src/CartManager/CartManagerInterface.php
index 8e017d5d..76569881 100644
--- a/src/CartManager/CartManagerInterface.php
+++ b/src/CartManager/CartManagerInterface.php
@@ -35,7 +35,7 @@ public function getCartClassName(): string;
      * @param string|null $key            - optional key of cart where the item should be added to
      * @param string|null $itemKey   - optional item key
      * @param bool $replace          - replace item if same key already exists
-     * @param array $params          - optional addtional item information
+     * @param array $customProperties          - optional additional item information
      * @param AbstractSetProductEntry[] $subProducts
      *
      * @return string - item key
@@ -46,7 +46,7 @@ public function addToCart(
         ?string $key = null,
         ?string $itemKey = null,
         bool $replace = false,
-        array $params = [],
+        array $customProperties = [],
         array $subProducts = [],
         ?string $comment = null
     ): string;
diff --git a/src/CartManager/MultiCartManager.php b/src/CartManager/MultiCartManager.php
index a94d5910..1a830f84 100644
--- a/src/CartManager/MultiCartManager.php
+++ b/src/CartManager/MultiCartManager.php
@@ -118,7 +118,7 @@ public function addToCart(
         ?string $key = null,
         ?string $itemKey = null,
         bool $replace = false,
-        array $params = [],
+        array $customProperties = [],
         array $subProducts = [],
         ?string $comment = null
     ): string {
@@ -130,7 +130,7 @@ public function addToCart(
 
         $cart = $this->carts[$key];
 
-        $itemKey = $cart->addItem($product, $count, $itemKey, $replace, $params, $subProducts, $comment);
+        $itemKey = $cart->addItem($product, $count, $itemKey, $replace, $customProperties, $subProducts, $comment);
         $this->save();
 
         return $itemKey;