Sales and E-commerce
(field of studies: Marketing and Sales)

E-commerce is the activity of buying or selling of products on online services or over the internet. Electronic commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange (EDI), inventory management systems, and automated data collection systems.

Sales is activity related to selling or the amount of goods or services sold in a given time period.