{
  "input_rows": 6,
  "output_rows": 5,
  "duplicates_removed": 1,
  "issues": [
    {
      "source_row": 4,
      "issue": "exact_duplicate_removed"
    },
    {
      "source_row": 6,
      "field": "order_date",
      "issue": "unrecognized_date"
    },
    {
      "source_row": 7,
      "field": "amount_gbp",
      "issue": "invalid_or_negative"
    }
  ]
}