Functions of channel access include

Including reducing transaction costs and expanding market coverage. Through channels, manufacturers can hand over goods to middlemen for sales and distribution, thus reducing their own sales costs and risks. At the same time, consumers can also buy goods through middlemen, which avoids the uncertainty and risks faced by direct transactions with producers. Improve market coverage: Through channel access, producers can distribute goods to a wider range of regions and markets, thus improving market coverage and sales of goods.