CoreShop Order Creation
Orders are usually getting created through the Checkout Step. If you ever need to create an Order manually, there are multiple ways.
You can always use the Pimcore API to create Orders, in CoreShop you would do it through the Factory:
$factory = $container->get('coreshop.factory.order')->createNew();
You can now fill the Order with all necessary information.
The more usual way to create Orders is through Carts or Quotes. Therefore CoreShop implements Transformer for that.