Building a referral-based business involves leveraging your existing customer base to grow your business by encouraging them to refer others to your products or services. This approach relies on the power of word-of-mouth marketing, where satisfied customers recommend your business to their friends, family, and colleagues.To build a referral-based business, you need to offer high-quality products or services that exceed your customers' expectations. You also need to establish a system for tracking referrals, incentivizing referrals, and rewarding customers who refer new business to you.Some effective strategies for building a referral-based business include offering referral bonuses, creating a referral program, and providing exceptional customer service to encourage customers to speak positively about your business. Building a referral-based business takes time and effort, but it can result in long-term growth and success.