A lead is a term used in the context of marketing and sales to refer to a potential customer who has expressed interest in a product or service. A lead is typically generated through a marketing campaign or outreach effort, and is typically characterized by some level of engagement or interaction with the product or service. A lead can take many forms, such as a sign-up for a newsletter, a request for more information, or a download of a product demo. A lead is an important asset for a business, as it represents a potential opportunity for the business to convert the lead into a customer. Lead generation and lead management are key components of a successful marketing and sales strategy.