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The revenue dashboard your executives rely on flashes an alarming 30-percent dip. Minutes stretch into hours as you comb through dozens of Airflow tasks, dbt models, and custom Python scripts pulling data from sources like Bing Ads, trying to understand where the numbers went wrong. Eventually you discover a silent schema change in a third-party API (one new nullable column) that cascaded through your ETL pipeline and rewrote yesterday's figures.
Friday, September 26, 2025
The revenue dashboard your executives rely on flashes an alarming 30-percent dip. Minutes stretch into hours as you comb through dozens of Airflow tasks, dbt models, and custom Python scripts pulling data from sources like Bing Ads, trying to understand where the numbers went wrong. Eventually you discover a silent schema change in a third-party API (one new nullable column) that cascaded through your ETL pipeline and rewrote yesterday's figures.
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