diff --git a/src/Sylius/Bundle/CoreBundle/Doctrine/ORM/OrderRepository.php b/src/Sylius/Bundle/CoreBundle/Doctrine/ORM/OrderRepository.php
index 2e80af98e3..bffb1cb5ac 100644
--- a/src/Sylius/Bundle/CoreBundle/Doctrine/ORM/OrderRepository.php
+++ b/src/Sylius/Bundle/CoreBundle/Doctrine/ORM/OrderRepository.php
@@ -233,12 +233,20 @@ class OrderRepository extends BaseOrderRepository implements OrderRepositoryInte
         ChannelInterface $channel,
         CustomerInterface $customer,
     ): ?OrderInterface {
+        $completedCheckoutsQueryBuilder = $this->createQueryBuilder('completedOrder')
+            ->select('completedOrder.id')
+            ->andWhere('completedOrder.channel = :channel')
+            ->andWhere('completedOrder.customer = :customer')
+            ->andWhere('completedOrder.checkoutCompletedAt > o.createdAt')
+        ;
+
         return $this->createQueryBuilder('o')
             ->andWhere('o.state = :state')
             ->andWhere('o.channel = :channel')
             ->andWhere('o.customer = :customer')
             ->andWhere('o.items IS NOT EMPTY')
             ->andWhere('o.createdByGuest = :createdByGuest')
+            ->andWhere(sprintf('NOT EXISTS (%s)', $completedCheckoutsQueryBuilder->getDQL()))
             ->setParameter('state', OrderInterface::STATE_CART)
             ->setParameter('channel', $channel)
             ->setParameter('customer', $customer)
diff --git a/tests/Api/Shop/Checkout/CartTest.php b/tests/Api/Shop/Checkout/CartTest.php
index 090803deaa..73d59157b2 100644
--- a/tests/Api/Shop/Checkout/CartTest.php
+++ b/tests/Api/Shop/Checkout/CartTest.php
@@ -110,6 +110,78 @@ final class CartTest extends JsonApiTestCase
         self::assertSame([], $response['items']);
     }
 
+    #[Test]
+    public function it_does_not_return_a_cart_abandoned_before_the_customer_last_completed_checkout(): void
+    {
+        $this->setUpDefaultPostHeaders();
+        $this->setUpShopUserContext();
+
+        $this->loadFixturesFromFiles([
+            'authentication/shop_user.yaml',
+            'channel/channel.yaml',
+            'cart.yaml',
+            'country.yaml',
+            'shipping_method.yaml',
+            'payment_method.yaml',
+        ]);
+
+        $this->placeOrder(
+            tokenValue: 'placedOrderToken',
+            email: 'shop@example.com',
+            checkoutCompletedAt: new \DateTimeImmutable(),
+        );
+
+        $abandonedCartToken = $this->pickUpCart(tokenValue: 'abandonedCartToken', email: 'shop@example.com');
+        $this->addItemToCart('MUG_BLUE', 3, $abandonedCartToken);
+
+        $abandonedCart = $this->orderRepository->findCartByTokenValue($abandonedCartToken);
+        $abandonedCart->setCreatedAt(new \DateTime('-1 hour'));
+        $this->get('doctrine.orm.entity_manager')->flush();
+
+        $this->requestPost(uri: '/api/v2/shop/orders', body: []);
+
+        $this->assertResponseCode($this->client->getResponse(), Response::HTTP_CREATED);
+
+        $response = json_decode($this->client->getResponse()->getContent(), true, flags: \JSON_THROW_ON_ERROR);
+
+        self::assertNotSame($abandonedCartToken, $response['tokenValue']);
+        self::assertSame([], $response['items']);
+    }
+
+    #[Test]
+    public function it_returns_the_customer_cart_created_after_the_last_completed_checkout(): void
+    {
+        $this->setUpDefaultPostHeaders();
+        $this->setUpShopUserContext();
+
+        $this->loadFixturesFromFiles([
+            'authentication/shop_user.yaml',
+            'channel/channel.yaml',
+            'cart.yaml',
+            'country.yaml',
+            'shipping_method.yaml',
+            'payment_method.yaml',
+        ]);
+
+        $this->placeOrder(
+            tokenValue: 'placedOrderToken',
+            email: 'shop@example.com',
+            checkoutCompletedAt: new \DateTimeImmutable('-1 hour'),
+        );
+
+        $newCartToken = $this->pickUpCart(tokenValue: 'newCartToken', email: 'shop@example.com');
+        $this->addItemToCart('MUG_BLUE', 3, $newCartToken);
+
+        $this->requestPost(uri: '/api/v2/shop/orders', body: []);
+
+        $this->assertResponseCode($this->client->getResponse(), Response::HTTP_CREATED);
+
+        $response = json_decode($this->client->getResponse()->getContent(), true, flags: \JSON_THROW_ON_ERROR);
+
+        self::assertSame($newCartToken, $response['tokenValue']);
+        self::assertCount(1, $response['items']);
+    }
+
     #[Test]
     public function it_gets_an_empty_cart_as_guest(): void
     {