A composite metric used to assess an affiliate program's overall performance across multiple dimensions — not just total revenue. Common health score components: publisher activation rate (percentage of approved publishers who generated at least one commission in the last 90 days; healthy programs: 30-50%); publisher concentration risk (percentage of total GMV from top 3 publishers; healthy: under 40%); new publisher activation rate (new publishers generating first commission in last 30 days); commission approval rate (percentage of transactions approved vs. reversed; very low approval rates signal excessive fraud or returns); publisher satisfaction (measured through survey or inferred through churn rate). A high-revenue program with poor health metrics (80% revenue from 2 publishers, 5% activation rate) is more fragile than a lower-revenue program with good health metrics (60% revenue from top 10 publishers, 35% activation rate). Review health score monthly alongside revenue reporting.
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