> 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/revenue-leakage-rules.md).

# Revenue Leakage Rules

- [Rule: Outstanding Account Balance (Zuora)](https://docs.kaana.com/guides/detection-rule-guides/revenue-leakage-rules/rule-outstanding-account-balance-zuora.md)
- [Rule: High Invoice Aging (Zuora)](https://docs.kaana.com/guides/detection-rule-guides/revenue-leakage-rules/rule-high-invoice-aging-zuora.md)
- [Rule: Large Refund Volume (Stripe)](https://docs.kaana.com/guides/detection-rule-guides/revenue-leakage-rules/rule-large-refund-volume-stripe.md)