How do you detect automation fatigue across multiple flows?

Automation fatigue requires looking across all flows:

Detection metrics: Engagement decline: Open and click rates falling over time. Unsubscribe increase: Rising opt-out rates from automation. Complaint patterns: Complaints citing too many emails. Engagement velocity: Time to open increasing.

Per-recipient analysis: Track total emails received across all automations. Identify recipients getting excessive volume. Correlate high volume with declining engagement.

Cross-flow visibility: Aggregate view of all automation sends per recipient. Identify overlap and stacking. Calculate true recipient frequency.

Warning thresholds: Alert when recipients exceed frequency limits. Flag when engagement drops significantly. Monitor cohorts entering multiple flows.

Response: Implement or tighten frequency caps. Prioritize automations for limited slots. Exit low-performers to reduce load.

Individual automations seem fine. Fatigue emerges from cumulative impact invisible without cross-flow analysis.