Which column(s) assigned to the dynamic profile allow dynamic content to change on specific dates?

The "Start date" and "End date" columns in the dynamic profile are crucial for scheduling dynamic content. By defining these dates, you ensure that specific content rows are active and served only within their designated timeframes. For example, a seasonal promotion can be set to appear automatically on its start date and disappear on its end date. "Image URL" specifies the image asset, but doesn't control its display timing. "Placement" refers to the ad slot where the creative will appear, not the content's active period. "Target ID" is used for targeting specific audiences or criteria, not for date-based content activation.