diff --git a/src/Sylius/Bundle/ApiBundle/Command/Payment/AddPaymentRequest.php b/src/Sylius/Bundle/ApiBundle/Command/Payment/AddPaymentRequest.php
index dd9761734e..78315e733a 100644
--- a/src/Sylius/Bundle/ApiBundle/Command/Payment/AddPaymentRequest.php
+++ b/src/Sylius/Bundle/ApiBundle/Command/Payment/AddPaymentRequest.php
@@ -16,10 +16,12 @@ namespace Sylius\Bundle\ApiBundle\Command\Payment;
 use Sylius\Bundle\ApiBundle\Attribute\OrderTokenValueAware;
 use Sylius\Bundle\ApiBundle\Attribute\PaymentRequestActionAware;
 use Sylius\Bundle\ApiBundle\Command\IriToIdentifierConversionAwareInterface;
+use Sylius\Bundle\ApiBundle\Validator\Constraints\OrderPaymentRequestEligibility;
 
 /** @experimental */
 #[OrderTokenValueAware]
 #[PaymentRequestActionAware]
+#[OrderPaymentRequestEligibility]
 class AddPaymentRequest implements IriToIdentifierConversionAwareInterface
 {
     public function __construct(
diff --git a/src/Sylius/Bundle/ApiBundle/Command/Payment/UpdatePaymentRequest.php b/src/Sylius/Bundle/ApiBundle/Command/Payment/UpdatePaymentRequest.php
index ffb8b58843..772f4c5e73 100644
--- a/src/Sylius/Bundle/ApiBundle/Command/Payment/UpdatePaymentRequest.php
+++ b/src/Sylius/Bundle/ApiBundle/Command/Payment/UpdatePaymentRequest.php
@@ -15,9 +15,11 @@ namespace Sylius\Bundle\ApiBundle\Command\Payment;
 
 use Sylius\Bundle\ApiBundle\Attribute\PaymentRequestHashAware;
 use Sylius\Bundle\ApiBundle\Command\IriToIdentifierConversionAwareInterface;
+use Sylius\Bundle\ApiBundle\Validator\Constraints\OrderPaymentRequestEligibility;
 
 /** @experimental */
 #[PaymentRequestHashAware]
+#[OrderPaymentRequestEligibility]
 class UpdatePaymentRequest implements IriToIdentifierConversionAwareInterface
 {
     public function __construct(
diff --git a/src/Sylius/Bundle/ApiBundle/Resources/config/services/validator.xml b/src/Sylius/Bundle/ApiBundle/Resources/config/services/validator.xml
index 5c18c7ff23..68daf7231d 100644
--- a/src/Sylius/Bundle/ApiBundle/Resources/config/services/validator.xml
+++ b/src/Sylius/Bundle/ApiBundle/Resources/config/services/validator.xml
@@ -201,6 +201,12 @@
             <tag name="validator.constraint_validator" alias="sylius_api_chosen_payment_request_action_eligibility" />
         </service>
 
+        <service id="sylius_api.validator.order_payment_request_eligibility" class="Sylius\Bundle\ApiBundle\Validator\Constraints\OrderPaymentRequestEligibilityValidator">
+            <argument type="service" id="sylius.repository.order" />
+            <argument type="service" id="sylius.repository.payment_request" />
+            <tag name="validator.constraint_validator" alias="sylius_api_order_payment_request_eligibility" />
+        </service>
+
         <service id="sylius_api.validator.order_address_requirement" class="Sylius\Bundle\ApiBundle\Validator\Constraints\OrderAddressRequirementValidator">
             <argument type="service" id="sylius.repository.order" />
             <tag name="validator.constraint_validator" alias="sylius_order_address_requirement_validator" />
diff --git a/src/Sylius/Bundle/ApiBundle/Resources/config/validation/AddPaymentRequest.xml b/src/Sylius/Bundle/ApiBundle/Resources/config/validation/AddPaymentRequest.xml
index 9486f588a3..2b0b65e36c 100644
--- a/src/Sylius/Bundle/ApiBundle/Resources/config/validation/AddPaymentRequest.xml
+++ b/src/Sylius/Bundle/ApiBundle/Resources/config/validation/AddPaymentRequest.xml
@@ -13,6 +13,11 @@
 
 <constraint-mapping xmlns="http://symfony.com/schema/dic/constraint-mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://symfony.com/schema/dic/constraint-mapping http://symfony.com/schema/dic/services/constraint-mapping-1.0.xsd">
     <class name="Sylius\Bundle\ApiBundle\Command\Payment\AddPaymentRequest">
+        <constraint name="Sylius\Bundle\ApiBundle\Validator\Constraints\OrderPaymentRequestEligibility">
+            <option name="groups">
+                <value>sylius</value>
+            </option>
+        </constraint>
         <constraint name="Sylius\Bundle\ApiBundle\Validator\Constraints\ChosenPaymentRequestActionEligibility">
             <option name="groups">
                 <value>sylius</value>
diff --git a/src/Sylius/Bundle/ApiBundle/Resources/config/validation/UpdatePaymentRequest.xml b/src/Sylius/Bundle/ApiBundle/Resources/config/validation/UpdatePaymentRequest.xml
new file mode 100644
index 0000000000..e57715ca6e
--- /dev/null
+++ b/src/Sylius/Bundle/ApiBundle/Resources/config/validation/UpdatePaymentRequest.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+
+ This file is part of the Sylius package.
+
+ (c) Sylius Sp. z o.o.
+
+ For the full copyright and license information, please view the LICENSE
+ file that was distributed with this source code.
+
+-->
+
+<constraint-mapping xmlns="http://symfony.com/schema/dic/constraint-mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://symfony.com/schema/dic/constraint-mapping http://symfony.com/schema/dic/services/constraint-mapping-1.0.xsd">
+    <class name="Sylius\Bundle\ApiBundle\Command\Payment\UpdatePaymentRequest">
+        <constraint name="Sylius\Bundle\ApiBundle\Validator\Constraints\OrderPaymentRequestEligibility">
+            <option name="groups">
+                <value>sylius</value>
+            </option>
+        </constraint>
+    </class>
+</constraint-mapping>
diff --git a/src/Sylius/Bundle/ApiBundle/Resources/translations/validators.en.yaml b/src/Sylius/Bundle/ApiBundle/Resources/translations/validators.en.yaml
index 672faa3471..9682d773ab 100644
--- a/src/Sylius/Bundle/ApiBundle/Resources/translations/validators.en.yaml
+++ b/src/Sylius/Bundle/ApiBundle/Resources/translations/validators.en.yaml
@@ -28,6 +28,7 @@ sylius:
         not_exist: 'The payment method with %code% code does not exist.'
     payment_request:
         action_not_available: 'The payment request (method code: %code% and payment id: %id%) has no handler. Please choose another payment method.'
+        invalid_order_checkout_state: 'Payment requests can only be created for placed orders.'
         not_available: 'The payment request is not supporting this action.'
     product:
         not_exist: 'The product %productName% does not exist.'
diff --git a/src/Sylius/Bundle/ApiBundle/Validator/Constraints/OrderPaymentRequestEligibility.php b/src/Sylius/Bundle/ApiBundle/Validator/Constraints/OrderPaymentRequestEligibility.php
new file mode 100644
index 0000000000..75af155758
--- /dev/null
+++ b/src/Sylius/Bundle/ApiBundle/Validator/Constraints/OrderPaymentRequestEligibility.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Sylius Sp. z o.o.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Sylius\Bundle\ApiBundle\Validator\Constraints;
+
+use Symfony\Component\Validator\Constraint;
+
+/** @experimental */
+#[\Attribute]
+final class OrderPaymentRequestEligibility extends Constraint
+{
+    public string $message = 'sylius.payment_request.invalid_order_checkout_state';
+
+    public function validatedBy(): string
+    {
+        return 'sylius_api_order_payment_request_eligibility';
+    }
+
+    public function getTargets(): string
+    {
+        return self::CLASS_CONSTRAINT;
+    }
+}
diff --git a/src/Sylius/Bundle/ApiBundle/Validator/Constraints/OrderPaymentRequestEligibilityValidator.php b/src/Sylius/Bundle/ApiBundle/Validator/Constraints/OrderPaymentRequestEligibilityValidator.php
new file mode 100644
index 0000000000..bc3724f00a
--- /dev/null
+++ b/src/Sylius/Bundle/ApiBundle/Validator/Constraints/OrderPaymentRequestEligibilityValidator.php
@@ -0,0 +1,94 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Sylius Sp. z o.o.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Sylius\Bundle\ApiBundle\Validator\Constraints;
+
+use Sylius\Bundle\ApiBundle\Command\Payment\AddPaymentRequest;
+use Sylius\Bundle\ApiBundle\Command\Payment\UpdatePaymentRequest;
+use Sylius\Component\Core\Model\OrderInterface;
+use Sylius\Component\Core\Model\PaymentInterface;
+use Sylius\Component\Core\OrderCheckoutStates;
+use Sylius\Component\Core\Repository\OrderRepositoryInterface;
+use Sylius\Component\Payment\Model\PaymentRequestInterface;
+use Sylius\Component\Payment\Repository\PaymentRequestRepositoryInterface;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Webmozart\Assert\Assert;
+
+/** @experimental */
+final class OrderPaymentRequestEligibilityValidator extends ConstraintValidator
+{
+    /**
+     * @param OrderRepositoryInterface<OrderInterface> $orderRepository
+     * @param PaymentRequestRepositoryInterface<PaymentRequestInterface> $paymentRequestRepository
+     */
+    public function __construct(
+        private OrderRepositoryInterface $orderRepository,
+        private PaymentRequestRepositoryInterface $paymentRequestRepository,
+    ) {
+    }
+
+    public function validate(mixed $value, Constraint $constraint): void
+    {
+        Assert::isInstanceOf($constraint, OrderPaymentRequestEligibility::class);
+
+        if ($value instanceof AddPaymentRequest) {
+            $this->validateAddPaymentRequest($value, $constraint);
+
+            return;
+        }
+
+        if ($value instanceof UpdatePaymentRequest) {
+            $this->validateUpdatePaymentRequest($value, $constraint);
+
+            return;
+        }
+
+        Assert::true(false, sprintf('Expected an instance of %s or %s. Got: %s', AddPaymentRequest::class, UpdatePaymentRequest::class, get_debug_type($value)));
+    }
+
+    private function validateAddPaymentRequest(AddPaymentRequest $value, OrderPaymentRequestEligibility $constraint): void
+    {
+        /** @var OrderInterface|null $order */
+        $order = $this->orderRepository->findOneBy(['tokenValue' => $value->orderTokenValue]);
+        if (null === $order) {
+            return;
+        }
+
+        if ($order->getCheckoutState() !== OrderCheckoutStates::STATE_COMPLETED) {
+            $this->context->addViolation($constraint->message);
+        }
+    }
+
+    private function validateUpdatePaymentRequest(UpdatePaymentRequest $value, OrderPaymentRequestEligibility $constraint): void
+    {
+        /** @var PaymentRequestInterface|null $paymentRequest */
+        $paymentRequest = $this->paymentRequestRepository->find($value->hash);
+        if (null === $paymentRequest) {
+            return;
+        }
+
+        /** @var PaymentInterface $payment */
+        $payment = $paymentRequest->getPayment();
+
+        /** @var OrderInterface|null $order */
+        $order = $payment->getOrder();
+        if (null === $order) {
+            return;
+        }
+
+        if ($order->getCheckoutState() !== OrderCheckoutStates::STATE_COMPLETED) {
+            $this->context->addViolation($constraint->message);
+        }
+    }
+}
diff --git a/src/Sylius/Bundle/ApiBundle/tests/Validator/Constraints/OrderPaymentRequestEligibilityValidatorTest.php b/src/Sylius/Bundle/ApiBundle/tests/Validator/Constraints/OrderPaymentRequestEligibilityValidatorTest.php
new file mode 100644
index 0000000000..72fc18df06
--- /dev/null
+++ b/src/Sylius/Bundle/ApiBundle/tests/Validator/Constraints/OrderPaymentRequestEligibilityValidatorTest.php
@@ -0,0 +1,216 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Sylius Sp. z o.o.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Tests\Sylius\Bundle\ApiBundle\Validator\Constraints;
+
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+use Sylius\Bundle\ApiBundle\Command\Payment\AddPaymentRequest;
+use Sylius\Bundle\ApiBundle\Command\Payment\UpdatePaymentRequest;
+use Sylius\Bundle\ApiBundle\Validator\Constraints\OrderPaymentRequestEligibility;
+use Sylius\Bundle\ApiBundle\Validator\Constraints\OrderPaymentRequestEligibilityValidator;
+use Sylius\Component\Core\Model\OrderInterface;
+use Sylius\Component\Core\Model\PaymentInterface;
+use Sylius\Component\Core\OrderCheckoutStates;
+use Sylius\Component\Core\Repository\OrderRepositoryInterface;
+use Sylius\Component\Payment\Model\PaymentRequestInterface;
+use Sylius\Component\Payment\Repository\PaymentRequestRepositoryInterface;
+use Symfony\Component\Validator\ConstraintValidatorInterface;
+use Symfony\Component\Validator\Context\ExecutionContextInterface;
+
+final class OrderPaymentRequestEligibilityValidatorTest extends TestCase
+{
+    /** @var OrderRepositoryInterface<OrderInterface>&MockObject */
+    private MockObject $orderRepositoryMock;
+
+    /** @var PaymentRequestRepositoryInterface<PaymentRequestInterface>&MockObject */
+    private MockObject $paymentRequestRepositoryMock;
+
+    private MockObject $executionContextMock;
+
+    private OrderPaymentRequestEligibilityValidator $validator;
+
+    protected function setUp(): void
+    {
+        $this->orderRepositoryMock = $this->createMock(OrderRepositoryInterface::class);
+        $this->paymentRequestRepositoryMock = $this->createMock(PaymentRequestRepositoryInterface::class);
+        $this->executionContextMock = $this->createMock(ExecutionContextInterface::class);
+        $this->validator = new OrderPaymentRequestEligibilityValidator(
+            $this->orderRepositoryMock,
+            $this->paymentRequestRepositoryMock,
+        );
+        $this->validator->initialize($this->executionContextMock);
+    }
+
+    public function test_it_implements_constraint_validator_interface(): void
+    {
+        self::assertInstanceOf(ConstraintValidatorInterface::class, $this->validator);
+    }
+
+    public function test_it_throws_an_exception_if_value_is_not_a_supported_command(): void
+    {
+        self::expectException(\InvalidArgumentException::class);
+        $this->validator->validate('not_a_command', new OrderPaymentRequestEligibility());
+    }
+
+    public function test_it_does_nothing_for_add_payment_request_when_order_is_not_found(): void
+    {
+        $command = new AddPaymentRequest('ORDER_TOKEN', 1, 'PAYMENT_METHOD_CODE');
+
+        $this->orderRepositoryMock
+            ->expects($this->once())
+            ->method('findOneBy')
+            ->with(['tokenValue' => 'ORDER_TOKEN'])
+            ->willReturn(null);
+
+        $this->executionContextMock->expects($this->never())->method('addViolation');
+
+        $this->validator->validate($command, new OrderPaymentRequestEligibility());
+    }
+
+    public function test_it_does_nothing_for_add_payment_request_when_order_checkout_state_is_completed(): void
+    {
+        $command = new AddPaymentRequest('ORDER_TOKEN', 1, 'PAYMENT_METHOD_CODE');
+
+        /** @var OrderInterface&MockObject $orderMock */
+        $orderMock = $this->createMock(OrderInterface::class);
+        $orderMock->method('getCheckoutState')->willReturn(OrderCheckoutStates::STATE_COMPLETED);
+
+        $this->orderRepositoryMock
+            ->expects($this->once())
+            ->method('findOneBy')
+            ->with(['tokenValue' => 'ORDER_TOKEN'])
+            ->willReturn($orderMock);
+
+        $this->executionContextMock->expects($this->never())->method('addViolation');
+
+        $this->validator->validate($command, new OrderPaymentRequestEligibility());
+    }
+
+    public function test_it_adds_violation_for_add_payment_request_when_order_checkout_state_is_not_completed(): void
+    {
+        $command = new AddPaymentRequest('ORDER_TOKEN', 1, 'PAYMENT_METHOD_CODE');
+
+        /** @var OrderInterface&MockObject $orderMock */
+        $orderMock = $this->createMock(OrderInterface::class);
+        $orderMock->method('getCheckoutState')->willReturn('cart');
+
+        $this->orderRepositoryMock
+            ->expects($this->once())
+            ->method('findOneBy')
+            ->with(['tokenValue' => 'ORDER_TOKEN'])
+            ->willReturn($orderMock);
+
+        $this->executionContextMock
+            ->expects($this->once())
+            ->method('addViolation')
+            ->with('sylius.payment_request.invalid_order_checkout_state');
+
+        $this->validator->validate($command, new OrderPaymentRequestEligibility());
+    }
+
+    public function test_it_does_nothing_for_update_payment_request_when_payment_request_is_not_found(): void
+    {
+        $command = new UpdatePaymentRequest('PAYMENT_REQUEST_HASH');
+
+        $this->paymentRequestRepositoryMock
+            ->expects($this->once())
+            ->method('find')
+            ->with('PAYMENT_REQUEST_HASH')
+            ->willReturn(null);
+
+        $this->executionContextMock->expects($this->never())->method('addViolation');
+
+        $this->validator->validate($command, new OrderPaymentRequestEligibility());
+    }
+
+    public function test_it_does_nothing_for_update_payment_request_when_order_is_not_found(): void
+    {
+        $command = new UpdatePaymentRequest('PAYMENT_REQUEST_HASH');
+
+        /** @var PaymentInterface&MockObject $paymentMock */
+        $paymentMock = $this->createMock(PaymentInterface::class);
+        $paymentMock->method('getOrder')->willReturn(null);
+
+        /** @var PaymentRequestInterface&MockObject $paymentRequestMock */
+        $paymentRequestMock = $this->createMock(PaymentRequestInterface::class);
+        $paymentRequestMock->method('getPayment')->willReturn($paymentMock);
+
+        $this->paymentRequestRepositoryMock
+            ->expects($this->once())
+            ->method('find')
+            ->with('PAYMENT_REQUEST_HASH')
+            ->willReturn($paymentRequestMock);
+
+        $this->executionContextMock->expects($this->never())->method('addViolation');
+
+        $this->validator->validate($command, new OrderPaymentRequestEligibility());
+    }
+
+    public function test_it_does_nothing_for_update_payment_request_when_order_checkout_state_is_completed(): void
+    {
+        $command = new UpdatePaymentRequest('PAYMENT_REQUEST_HASH');
+
+        /** @var OrderInterface&MockObject $orderMock */
+        $orderMock = $this->createMock(OrderInterface::class);
+        $orderMock->method('getCheckoutState')->willReturn(OrderCheckoutStates::STATE_COMPLETED);
+
+        /** @var PaymentInterface&MockObject $paymentMock */
+        $paymentMock = $this->createMock(PaymentInterface::class);
+        $paymentMock->method('getOrder')->willReturn($orderMock);
+
+        /** @var PaymentRequestInterface&MockObject $paymentRequestMock */
+        $paymentRequestMock = $this->createMock(PaymentRequestInterface::class);
+        $paymentRequestMock->method('getPayment')->willReturn($paymentMock);
+
+        $this->paymentRequestRepositoryMock
+            ->expects($this->once())
+            ->method('find')
+            ->with('PAYMENT_REQUEST_HASH')
+            ->willReturn($paymentRequestMock);
+
+        $this->executionContextMock->expects($this->never())->method('addViolation');
+
+        $this->validator->validate($command, new OrderPaymentRequestEligibility());
+    }
+
+    public function test_it_adds_violation_for_update_payment_request_when_order_checkout_state_is_not_completed(): void
+    {
+        $command = new UpdatePaymentRequest('PAYMENT_REQUEST_HASH');
+
+        /** @var OrderInterface&MockObject $orderMock */
+        $orderMock = $this->createMock(OrderInterface::class);
+        $orderMock->method('getCheckoutState')->willReturn('addressed');
+
+        /** @var PaymentInterface&MockObject $paymentMock */
+        $paymentMock = $this->createMock(PaymentInterface::class);
+        $paymentMock->method('getOrder')->willReturn($orderMock);
+
+        /** @var PaymentRequestInterface&MockObject $paymentRequestMock */
+        $paymentRequestMock = $this->createMock(PaymentRequestInterface::class);
+        $paymentRequestMock->method('getPayment')->willReturn($paymentMock);
+
+        $this->paymentRequestRepositoryMock
+            ->expects($this->once())
+            ->method('find')
+            ->with('PAYMENT_REQUEST_HASH')
+            ->willReturn($paymentRequestMock);
+
+        $this->executionContextMock
+            ->expects($this->once())
+            ->method('addViolation')
+            ->with('sylius.payment_request.invalid_order_checkout_state');
+
+        $this->validator->validate($command, new OrderPaymentRequestEligibility());
+    }
+}
diff --git a/tests/Api/DataFixtures/ORM/payment_request/order.yaml b/tests/Api/DataFixtures/ORM/payment_request/order.yaml
index fcd3cc2d49..2e90543f58 100644
--- a/tests/Api/DataFixtures/ORM/payment_request/order.yaml
+++ b/tests/Api/DataFixtures/ORM/payment_request/order.yaml
@@ -14,4 +14,5 @@ Sylius\Component\Core\Model\Order:
         state: "new"
         paymentState: "awaiting_payment"
         shippingState: "ready"
+        checkoutState: "completed"
         tokenValue: "token"
diff --git a/tests/Api/DataFixtures/ORM/payment_request/order_not_placed.yaml b/tests/Api/DataFixtures/ORM/payment_request/order_not_placed.yaml
new file mode 100644
index 0000000000..edcd1ce2d8
--- /dev/null
+++ b/tests/Api/DataFixtures/ORM/payment_request/order_not_placed.yaml
@@ -0,0 +1,18 @@
+Sylius\Component\Core\Model\Payment:
+    payment_not_placed:
+        method: "@payment_method_cash_on_delivery"
+        order: "@order_not_placed"
+        state: "new"
+        amount: 1000
+        currencyCode: "USD"
+
+Sylius\Component\Core\Model\Order:
+    order_not_placed:
+        channel: "@channel_web"
+        currencyCode: "USD"
+        localeCode: "en_US"
+        state: "cart"
+        paymentState: "cart"
+        shippingState: "cart"
+        checkoutState: "cart"
+        tokenValue: "notPlacedOrderToken"
diff --git a/tests/Api/DataFixtures/ORM/payment_request/order_with_customer.yaml b/tests/Api/DataFixtures/ORM/payment_request/order_with_customer.yaml
index 8e1d76355f..d11f0c13d2 100644
--- a/tests/Api/DataFixtures/ORM/payment_request/order_with_customer.yaml
+++ b/tests/Api/DataFixtures/ORM/payment_request/order_with_customer.yaml
@@ -14,6 +14,7 @@ Sylius\Component\Core\Model\Order:
         state: "new"
         paymentState: "awaiting_payment"
         shippingState: "ready"
+        checkoutState: "completed"
         tokenValue: "token"
         __calls:
             - setCustomerWithAuthorization: ["@customer_oliver"]
diff --git a/tests/Api/DataFixtures/ORM/payment_request/order_with_customer_created_as_guest.yaml b/tests/Api/DataFixtures/ORM/payment_request/order_with_customer_created_as_guest.yaml
index c58b22a5a4..06b2478163 100644
--- a/tests/Api/DataFixtures/ORM/payment_request/order_with_customer_created_as_guest.yaml
+++ b/tests/Api/DataFixtures/ORM/payment_request/order_with_customer_created_as_guest.yaml
@@ -14,5 +14,6 @@ Sylius\Component\Core\Model\Order:
         state: "new"
         paymentState: "awaiting_payment"
         shippingState: "ready"
+        checkoutState: "completed"
         tokenValue: "token"
         customer: "@customer_oliver"
diff --git a/tests/Api/DataFixtures/ORM/payment_request/payment_request_not_placed.yaml b/tests/Api/DataFixtures/ORM/payment_request/payment_request_not_placed.yaml
new file mode 100644
index 0000000000..fc4f10c285
--- /dev/null
+++ b/tests/Api/DataFixtures/ORM/payment_request/payment_request_not_placed.yaml
@@ -0,0 +1,7 @@
+Sylius\Component\Payment\Model\PaymentRequest:
+    payment_request_not_placed:
+        __construct: [ '@payment_not_placed', '@payment_method_cash_on_delivery' ]
+        state: "new"
+        action: "capture"
+        payload: null
+        responseData: []
diff --git a/tests/Api/Shop/PaymentRequestsTest.php b/tests/Api/Shop/PaymentRequestsTest.php
index 431705b518..c6a42c4cd5 100644
--- a/tests/Api/Shop/PaymentRequestsTest.php
+++ b/tests/Api/Shop/PaymentRequestsTest.php
@@ -191,6 +191,58 @@ final class PaymentRequestsTest extends JsonApiTestCase
         ]);
     }
 
+    #[Test]
+    public function it_does_not_create_a_payment_request_for_an_order_that_is_not_placed(): void
+    {
+        $fixtures = $this->loadFixturesFromFiles([
+            'channel/channel.yaml',
+            'payment_method.yaml',
+            'payment_request/order_not_placed.yaml',
+        ]);
+
+        /** @var PaymentInterface $payment */
+        $payment = $fixtures['payment_not_placed'];
+
+        $this->client->request(
+            method: 'POST',
+            uri: '/api/v2/shop/orders/notPlacedOrderToken/payment-requests',
+            server: $this->headerBuilder()->withJsonLdAccept()->withJsonLdContentType()->build(),
+            content: json_encode([
+                'paymentId' => $payment->getId(),
+                'paymentMethodCode' => 'CASH_ON_DELIVERY',
+            ], \JSON_THROW_ON_ERROR),
+        );
+
+        $this->assertResponseContainsViolations([
+            ['propertyPath' => '', 'message' => 'Payment requests can only be created for placed orders.'],
+        ]);
+    }
+
+    #[Test]
+    public function it_does_not_update_a_payment_request_for_an_order_that_is_not_placed(): void
+    {
+        $fixtures = $this->loadFixturesFromFiles([
+            'channel/channel.yaml',
+            'payment_method.yaml',
+            'payment_request/order_not_placed.yaml',
+            'payment_request/payment_request_not_placed.yaml',
+        ]);
+
+        /** @var PaymentRequestInterface $paymentRequest */
+        $paymentRequest = $fixtures['payment_request_not_placed'];
+
+        $this->client->request(
+            method: 'PUT',
+            uri: sprintf('/api/v2/shop/payment-requests/%s', $paymentRequest->getHash()),
+            server: $this->headerBuilder()->withJsonLdAccept()->withJsonLdContentType()->build(),
+            content: json_encode(['payload' => ['some' => 'payload']], \JSON_THROW_ON_ERROR),
+        );
+
+        $this->assertResponseContainsViolations([
+            ['propertyPath' => '', 'message' => 'Payment requests can only be created for placed orders.'],
+        ]);
+    }
+
     /**
      * @param array<string> $fixturesPaths
      *