How do RevOps teams catch issues before they start affecting revenue?

I’m doing a bit research on how RevOps teams handle this problem today.

Let’s suppose something breaks somewhere in the revenue stack:
- a Salesforce/HubSpot workflow stops working
- attribution data starts drifting
- leads stop routing correctly
- billing and CRM data stop matching
- pipeline data becomes inaccurate

The issue might sit there for hours or days before someone notices it through a dashboard, a rep complaining, or a number suddenly looking wrong.
How do you catch these problems before they actually start affecting pipeline or revenue?

Do you already have something that tells you which operational issues are becoming financially important, or is it mostly dashboards, alerts, manual checks, and people noticing something looks off?

Trying to understand whether this is a real problem before building anything around it. Would especially like to hear from RevOps, SalesOps, Revenue Systems, or Revenue Engineering people who deal with this regularly.