In this section, we learn how to validate user activity for a feature by constructing a SQL query that counts user logins based on specific criteria. This type of query is crucial for Business Analysts seeking insights into user engagement and behavior regarding particular features of a system. By filtering for 'Login' activity within a specific date range (from '2024-01-01' onwards), the query aggregates the number of logins grouped by user identifier (user_id). The ability to track such metrics aids in assessing feature adoption, understanding user behavior, and improving product functionality.