BMSA is one type of MLM. Most commonly, the salespeople are expected to sell products directly to consumers by means of relationship referrals and word of mouth marketing. MLM salespeople not only sell the company's products but also encourage others to join the company as a distributor.

Multi-level marketing (MLM), also called pyramid selling, network marketing, and referral marketing, is a marketing strategy for the sale of products or services where the revenue of the MLM company is derived from a non-salaried workforce selling the company's products/services.