[
  {
    "event_id": "EV-1",
    "campaign_id": "SPRING-26",
    "event_type": "purchase",
    "revenue": "40.00",
    "quality_reasons": "duplicate_event_id",
    "reportable": false
  },
  {
    "event_id": "EV-2",
    "campaign_id": "",
    "event_type": "purchase",
    "revenue": "60.00",
    "quality_reasons": "missing_campaign",
    "reportable": false
  },
  {
    "event_id": "EV-1",
    "campaign_id": "SPRING-26",
    "event_type": "purchase",
    "revenue": "40.00",
    "quality_reasons": "duplicate_event_id",
    "reportable": false
  },
  {
    "event_id": "EV-3",
    "campaign_id": "SPRING-26",
    "event_type": "view",
    "revenue": "0.00",
    "quality_reasons": "",
    "reportable": true
  }
]