What does the Refresh Group activity do?

The Refresh Group activity is designed to reevaluate and reapply the rules defined in a group definition. This is particularly useful when the underlying data has changed and you need to ensure that the subscriber group accurately reflects the current criteria or segmentation rules. By executing the Refresh Group activity, the system reviews the current subscriber data against the specified conditions and updates the group membership accordingly, creating a current subset of subscribers. This process ensures that the group remains relevant and aligned with any updates or changes in subscriber attributes.

In contrast, updating a subscriber list from an external file relates to importing or synchronizing data from outside sources, and running a report focuses on analyzing data rather than refreshing group membership. Securely transferring files deals with file management tasks rather than subscriber segmentation, which is not within the scope of the Refresh Group activity.