Business Metrics Beat Uptime Probes for Guarding Pricing Rule Rollouts

An internal uptime dashboard for a Node.js logistics service should track business outcomes rather than rely solely on external health probes. A pricing endpoint can return success while producing wrong quotes, so transport-level checks miss rule errors. The recommended design labels quote outcomes by a bounded rule version and watches fallback usage and suspicious price categories. Comparing candidate and baseline traffic in the same window gives operators a clear basis for deciding whether to roll back. Keeping labels limited avoids unbounded storage growth and keeps the dashboard easy to scan.