The event container contains the event parameters as container elements. If you define triggering events or terminating events for a task, you can specify the binding from the event container to the task container. If you define triggering events for a workflow, you can specify the binding from the event container to the workflow container.

The event container contains workflow system elements as standard. You can add more container elements to the event container within object type definition in the Business Object Builder. This is not usually necessary, however.