**Global Skills – Lead Nurturing Analysis (C → B Upgrade, Day 7)** - **High-value signal: callback request** — A callback request is an active, intent-rich action, not passive browsing. It signals the lead is ready for human contact and self-identifies as sales-qualified. - 中文：主动请求回电属于高意向行为，非被动浏览，代表客户已具备销售跟进条件。 - **Why the upgrade C → B** — Cumulative score rose from 50 to a predicted 61, crossing the 60 threshold. The AI treats the callback request as a meaningful scoring event, not noise. - 中文：累计分从50升至预测61，越过60阈值，AI判定为有效评分事件并触发升级。 - **Triggered actions** — Auto-send a tailored B2B training proposal + create a sales follow-up task with callback SLA (e.g., <2h), routed to the success team owner. - 中文：自动推送定制化培训方案，并生成销售跟进任务（如2小时内回电），指派至对应负责人。 - **Path to 100-unit inquiry** — With B-pool nurturing (case studies, ROI data, pilot offer), the lead can reach the 120 A-threshold, positioning Global Skills for a large-volume distribution deal. - 中文：在B池通过案例、ROI数据和试点方案持续培育，客户可升至A池，为100套分销大单铺路。 - **Business outcome** — Behavior-driven upgrading compresses sales cycles, improves pipeline quality, and raises conversion efficiency on high-intent leads. - 中文：行为驱动的自动升级缩短销售周期、提升商机质量与高意向客户的转化效率。