The document discusses shifting customer support interactions to lower-cost channels through a "shift left" model. It outlines common support options from lowest to highest cost, including self-help, social media, chat, phone, and in-person. The shift left model analyzes the cost and likelihood of success for each support type. While cost is important, the value of interactions, such as impact on customer satisfaction and retention, also matters. The conclusion recommends identifying high-volume issues that can shift left without harming quality, situations where failure costs are high enough to require personal engagement, and ways to coordinate channels to improve outcomes.