Here's the analysis for the Day 7 scenario: - **Callback request signals active buying intent, not passive interest.** / 主动预约回电是明确的购买信号，价值远高于浏览或观看视频等被动行为。 It shows the lead is ready to engage with a human and likely has budget/timeline in mind. - **AI raises the score (0 → 3) but holds in C Pool.** / AI将评分从0升至3，但仍保留在C池。 One high-intent action is a strong signal but not enough volume; 3 is far below the 60 C→B threshold, so AI avoids premature upgrade and wasted sales time. - **Trigger low-cost, high-velocity nurturing—not a full sales handoff.** / 触发低成本、快速响应的培育动作，而非正式销售交接。 Recommended: instant callback confirmation, a tailored discovery call task, and a short capability deck relevant to distribution/training needs. - **Use the callback to qualify for the 100-unit opportunity.** / 借回电机会验证100套分销意向的资格。 Sales should confirm scale, decision timeline, and buyer role—feeding qualified data back to lift the score toward B/A. - **Business outcome: protect pipeline quality and sales efficiency.** / 业务结果：保障商机质量与销售效率。 Keeping the lead in C until intent matures prevents over-investing in unqualified leads while capturing the callback while interest is hot.