> 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/rule-high-invoice-aging-zuora.md).

# Rule: High Invoice Aging (Zuora)

**Category:** Revenue Leakage\
**Severity:** Warning\
**Run Frequency:** Every 60 minutes

**Target System:** Zuora

**What It Monitors:**\
Invoices that have been outstanding for too long.

**How It Works:**

| Setting       | Value                                                  |
| ------------- | ------------------------------------------------------ |
| Data Source   | Zuora Invoices                                         |
| Looks For     | Posted invoices with remaining balance greater than $0 |
| Time Window   | Last 24 hours                                          |
| Triggers When | More than 5 unpaid invoices per account                |
| Groups By     | Account                                                |

**Why It Matters:**\
Aged invoices risk becoming bad debt and directly impact cash flow.

**Recommended Actions:**

* Review collection strategy
* Send payment reminders
* Escalate to collections team