TL;DR: Error tracking catches crashes and thrown exceptions. It cannot prove that a scheduled job ran, and an uptime probe cannot prove that the job finished. For an e-commerce experiment compared across tenant cohorts, rollback safety requires three separate observations: application errors, s...
Source: [Dev.to](https://dev.to/valdemarblack3817/saas-silent-failures-explained-3-python-cron-heartbeat-monitoring-signals-1eif)