According to the APICS CSCP - Supply Chain Management Certification, an internet-based trading exchange is a type of e-sourcing platform that connects buyers and sellers of goods and services online, allowing them to conduct transactions, compare prices, and access market information. Sourcing via an internet-based trading exchange would be most appropriate for inexpensive material for which there are several substitutes, as this type of material has low strategic importance and high supply availability, and can benefit from the lower transaction costs, increased competition, and reduced lead times offered by the online platform.