A human action is a workflow step that represents a manual process. Within WorldServer, all but one of the human actions are identical: they display a message to the user, and wait for the user to indicate completion of the action. The exception is the Auto Error action, which allows the user to cancel or redo the task. The Auto Error action is not strictly a Human Action in the sense that it does not appear in the drop-down list of available actions when you insert a Human Step. It appears automatically in the workflow when you add an Automatic Action. When an error occurs in an Automatic Action, a human intervention is required—you can correct the problem and redo the task or you can cancel the task.