Customer Health Score Design, validate, and maintain one composite score that tells a post-sale team which accounts are drifting toward churn and which are ready for an expansion conversation. In ChurnZero's 2025 Customer Revenue Leadership Study ( 800 CS and post-sales leaders surveyed), 73% said their current health score does not reliably predict churn. - Performative score. Someone picks ten metrics, weights them by intuition; CS ignores the result because it predicts nothing. - Predictive score. Derives its weights from what churned accounts actually did before churning, then proves itse…