success-churn-recovery

Use when 已成交客户已流失（不续约/停用/被竞品替换/公司解散/合同到期未续/战略转型）——帮销售/CS 判定求救方 vs 借刀方、识别 Champion 政治处境、设计 D-X 倒排计划、内置 30 天联合验证期 Plan B、设 3 个停手信号，把可能赢回的客户救回来。Triggers: '流失挽回', '客户流失', '客户挽留', '赢回', '把客户赢回来', '客户不续约', '被竞品替换', '合同到期未续', '客户停用', '国产化替换', 'churn recovery', 'win-back', 'customer reactivation', 'lost customer recovery'. Do NOT use for churn prediction, renewal prevention (success-renewal-management), or pre-deal lost leads.