In relation to action-based campaigns, when can audience criteria be re-evaluated?

Audience criteria for action-based campaigns can be re-evaluated at send time, particularly if there is a delay. This flexibility allows marketers to adjust their targeting based on the most current data available up to the moment of sending, ensuring that the audience receiving the campaign is as relevant as possible. For instance, if new data comes in that changes the status of certain users or their engagement, re-evaluating at send time can help improve the effectiveness of the campaign by only including those who meet the updated criteria.

The other possibilities present limitations that would not accommodate the dynamic nature of audience targeting. Evaluating criteria solely at entry time restricts adjustments based on new information, while stating that re-evaluation is not possible disregards the importance of adapting to real-time data. Allowing for re-evaluation at send time when there's a delay provides a useful opportunity for enhancing campaign performance.