# KPIs Use Key Performance Indicators (KPIs) to monitor and analyze data on payments, billing, KYC, and API requests. This section of the docs, and the Rebilly product, is mainly used by Analysts, Accountants, and Billing Managers. Date ranges up to a 12-month span are supported. **Select a topic:** Payments KPIs View payment transaction metrics. Billing KPIs View subscription and revenue metrics. KYC KPIs View customer verification performance. KPI segments Filter and segment KPI data.