How do you verify that a daily data refresh has completed successfully and that the resulting numbers are accurate?

To verify that a daily refresh has completed and the numbers are correct, I combine several checks. First, use the orchestrator’s completion status and set up an alert when a job finishes. Second, run automated data validation scripts that compare row counts, checksums, and key metrics against expected values or a golden dataset. Third, implement a data quality dashboard that shows trend lines for critical metrics; any deviation triggers an alert. Finally, for critical KPIs, perform a spot‑check by sampling the refreshed data and comparing it to the previous run. If all checks pass, I can be confident that the refresh finished successfully and the data is accurate.