# INTRODUCTION

- [What is FlyCode?](/docs/introduction/what-is-flycode.md): Customers don’t always leave on purpose. FlyCode helps you catch the ones who didn’t mean to.
- [🎟 What causes payment failures & involuntary churn?](/docs/introduction/what-causes-payment-failures-and-involuntary-churn.md): Most teams think failed payments are just a cost of doing business. But many are preventable - if you know where to look.
- [🚨 How teams handle failed payments before FlyCode?](/docs/introduction/how-teams-handle-failed-payments-before-flycode.md): Most recovery efforts fail because they treat all errors the same, even though banks and card networks apply different rules and risk scores to each transaction.
- [Involuntary churn and failed payments](/docs/introduction/involuntary-churn-and-failed-payments.md): Learn how to reduce failed payment churn with FlyCode’s intelligent payment recovery and subscription optimization tools.
- [Analyze your subscription churn (free report)](/docs/introduction/analyze-your-subscription-churn-free-report.md): We’ll show you which types of failures are costing you most and how smarter retry logic can get that revenue back.