Online and offline customer acquisition techniques are the most popular ways to generate customers for a product or service. Offline Customer Acquisition Techniques: Offline customer acquisition techniques include TV, Radio, Billboards, and Direct Mail. These are the traditional methods of generating customers for any product or service. Online Customer Acquisition Techniques: Online customer acquisition includes SEO, PPC (Pay-Per-Click), Social Media Marketing, Email Marketing and Influencer Marketing. These are all digital marketing methods that can be used to generate new customers for a company's product or service.