1) The product flow
2) The information flow
3) The finances flow
The product flow usually involves movement of products from a supplier to a customer, and also the back end process such as any customer returns or service needs.
The information flow involves the flow of information on orders and updating the status of delivery.
The financial flow consists of credit terms, payment schedules, and consignment and title ownership arrangements.
Here are some good example on the process flow of supply chain management:-