Billing bugs are
revenue leaks.
I audit and harden billing integrations (Stripe/PayPal) to stop double charges, missed webhooks, and silent failures.
Are you seeing these signs?
Billing issues destroy customer trust faster than anything else.
Missed Webhooks
Customers pay but don't get access. Your support team has to manually "fix" database records. It's a mess.
Silent Failures
Cards expire, but your app doesn't downgrade the user. You are literally giving away your product for free.
Double Charges
Race conditions in your controller cause users to be charged twice for the same subscription. Refund fees stack up.
How I Fix It
I treat billing code like bank code. It needs to be transactional, idempotent, and heavily logged.
Robust Webhook Handlers
Implement background job processors for webhooks that handle retries and failures gracefully without data loss.
Idempotency Keys
Ensure that network retries don't result in duplicate charges. Every transaction is unique.
Reconciliation Scripts
Automated nightly scripts that compare your DB state with Stripe's truth, alerting you to drifts immediately.
Common Fixes
Stop manual billing support.
Automate your revenue Ops and sleep better at night.