Create an OrderSummary based on an order. That order is considered
the original order for the OrderSummary. Subsequent change orders that apply to the
OrderSummary are also represented as orders. You can specify whether the order is managed in
Salesforce Order Management or by an external system. Most Salesforce Order Management APIs
can run only on orders that it manages.
Signature
public static
ConnectApi.OrderSummaryOutputRepresentation
createOrderSummary(ConnectApi.OrderSummaryInputRepresentation
orderSummaryInput)