This document discusses scaling customer success activities for mid-market accounts. It proposes implementing a remote customer advocacy program with centralized teams to personally engage mid-market customers via phone based on data-driven risk factors. Lessons learned include analyzing customer segments, gathering comprehensive customer data, facilitating collaboration between advocates and sales teams, and defining processes while also retaining advocates through training and career opportunities. The goal is to proactively monitor at-risk customers and identify expansion opportunities to maintain high renewal rates across the large installed base.