Which of the following is NOT a valid trigger for initiating a rollout in AEM?

The option that is considered a valid trigger for initiating a rollout in Adobe Experience Manager (AEM) is "On Publication," "On Modification," and "On Deactivation." Each of these events indicates specific actions that can warrant a rollout, focusing on changes to the content or structure that require updates or synchronization across instances.

• "On Publication" triggers a rollout when content is published, effectively disseminating changes to the end users.

• "On Modification" initiates a rollout when any changes are made to a page or component, ensuring that updates are reflected in all necessary environments.

• "On Deactivation" signifies that when content is deactivated (removed or unpublished), a corresponding rollout may occur to ensure consistency across different instances.

In contrast, "On Update" is generally not regarded as a standard trigger in the context of AEM rollouts. While updates may occur alongside modifications or publications, the terminology used in AEM does not typically recognize "On Update" as a distinct event that would trigger a rollout. Therefore, identifying "On Update" as a non-standard trigger helps clarify the specific terminology and mechanisms used within AEM's framework for managing content delivery and synchronization.