Definition:
Customer Acquisition Cost is the cost associated in convincing a customer to buy a product/service.This cost is incurred by the organization to convince a potential customer. This is an important business metric. It plays a major role in calculating the value of the customer to the company and the resulting return on investment (ROI) of acquisition. The calculation of customer valuation helps a company decide how much of its resources can be profitably spent on a particular customer. In general terms, it helps to decide the worth of the customer to the company.
Further Reading:
Book: Zero to One by Peter Theil