Feature flags control rollouts. Entitlements control paid access. Conflating them creates maintenance debt. Learn when to use each.
Build vs buy your SaaS billing system? Checkout takes a week. Webhooks, proration, and failed payments take months. Here's the real cost.
Webhooks deliver billing events in real-time, but they break in subtle ways. Avoid the pitfalls of duplicates, ordering, and downtime.
Stop checking plan names in code. The entitlements pattern decouples pricing from your application, so pricing changes never require a deploy.