> For the complete documentation index, see [llms.txt](https://docs.kaana.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kaana.com/guides/detection-rule-guides/payment-health-rules.md).

# Payment Health Rules

- [Rule: Failed Payment Signal (Zuora)](https://docs.kaana.com/guides/detection-rule-guides/payment-health-rules/rule-failed-payment-signal-zuora.md)
- [Rule: Failed Payment Spike (Zuora)](https://docs.kaana.com/guides/detection-rule-guides/payment-health-rules/rule-failed-payment-spike-zuora.md)
- [Rule: Dispute Rate Signal (Stripe)](https://docs.kaana.com/guides/detection-rule-guides/payment-health-rules/rule-dispute-rate-signal-stripe.md)
- [Rule: Payment Method Decline Rate (Stripe)](https://docs.kaana.com/guides/detection-rule-guides/payment-health-rules/rule-payment-method-decline-rate-stripe.md)