Referrals provide quality prospects to your business by engaging existing, satisfied customers. By gaining contact information — a name, some background information, and potentially even an introduction — from a referrer, a referral can immediately enter your sales funnel with some positive momentum to potentially become a customer. Referrals are oftentimes gained via promotions, refer-a-friend incentives, and also provide a crucial component in multi-level marketing (MLM), where a non-salaried workforce sells a company’s products, generating commissions which serve as the primary source of employees’ compensation (pyramid selling).
Referrals come pre-qualified for your business and can leverage existing relationships with satisfied customers to lead to new sales. These can become cost-effective leads, utilizing little monetary investment from your organization to identify and engage quality prospects. More than simply the revenue generated, however, referrals are a vital component to the customer relationship and overall satisfaction of your client base, as both the incoming referral and the original referrer have expectations from your business.
References
https://smallbusiness.chron.com/sales-referral-22835.html
https://en.wikipedia.org/wiki/Referral_marketing
https://blog.hubspot.com/sales/referral-strategies-double-sales