US Patent 10904194 Dynamic email content engine

Disclosed herein are system, method, and computer program product embodiments for assigning a content item to a subscriber record. Embodiments include electing a subscriber record from a database and assigning a persona record to the selected subscriber record. Then, a first and a second content item are added to a content pool based on a first and a second rule, respectively, where the first and the second rule are applied based on the persona record. Embodiments also include ranking the first content item and the second content item based on a first priority value and a second priority value associated with the first and the second rule, respectively. Then, the first content item is assigned to the subscriber record based on the ranking.