Problem Statement

Which Data Quality Defect to Fix First for Revenue Reporting A customer analytics table feeds both monthly revenue reporting and marketing outreach. Sample records: CustomerID | Email | SignupDate | Revenue | Status 101 | a@x.com | 2025-01-10 | 5000 | Active 101 | a@x.com | 2025-01-10 | 5000 | Active 102 | NULL | 2025-02-15 | 3000 | Active 103 | c@x.com | 2026-13-01 | 2500 | Active 104 | d@x.com | 2025-03-20 | -800 | Active 105 | e@x.com | 2025-04-01 | 0 | Closed If the immediate goal is accurate monthly revenue reporting, which data quality issue should be prioritized first?