You must know that the Adobe Journey Optimizer Developer Expert (AD0-E606) exam measures your ability to configure, develop, test, and troubleshoot Adobe Journey Optimizer (AJO) components—including journeys, decisioning, offers, data ingestion, schemas, and content authoring. To pass your AD0-E606 exam, you must be comfortable with the exam skill areas: AJO Journeys: Designing, testing, and debugging