The sales role for a coffee business involves identifying potential customers and building relationships with them to secure orders. This can be achieved through selling coffee beans, catering events, cart deployment services, and pitching for locations for new cafes. It is important to emphasise the social impact of supporting ex-offenders through job opportunities and to consistently deliver on promises to maintain long-term relationships. Success in this role requires excellent customer service and the ability to align sales efforts with the social enterprise aspect of the business.