title	issue	author	author_email	author_github
Add validatePaymentState to SetPaymentOrderRoute	NEXT-16231	Sebastian Seggewiss	s.seggewiss@shopware.com	seggewiss

Core

Added \Shopware\Core\Checkout\Order\Exception\PaymentMethodNotChangeableException

API

Changed /store-api/order/payment to validate if the transaction status allows for a payment method change