How is a Sale Confirmed on the Web?

      Using a web site to sell goods or services requires agreements that can be entered into online. Some agreements may include only the terms of the sale, such as whether the product may be returned for a refund. Other agreements may specify terms that govern the provision of services such as computer programming. 
     Online agreements must comply with applicable laws for the market involved. Conforming e-commerce agreements so they are suitable for customers of different countries may require more than one version of the agreement. In order to have country-specific agreements, it may be necessary to adopt a process of electronically authenticating the identity and location of each online customer.