Data 360: Full Refresh Activation to Marketing Cloud does not remove all Data Extension records when Segment Population is 0

Example Scenario:

• You configure a segment and create a Full Refresh activation to Marketing Cloud Engagement.
• The segment population is 50 when the the activation is first published.
• The segment population then decreases from 50 to 0.
• The segment is published, the activation runs and the publish history shows 0 records for both Segment and Activation.
• However, the 50 records previously activated to Marketing Cloud will remain in the data extension as the data extension records are not cleared/deleted when a refreshing a segment with a population of 0.

This behaviour has been confirmed as expected by the Data 360 (formerly Data Cloud) activations product team.