Advanced Certified Scrum Product Owner (A-CSPO?) is a certification from Scrum Alliance. If you are already a Certified Scrum Product Owner® (CSPO®) and focusing on maximizing business value and Product Backlog optimization to understand how to do the best possible job to satisfy key stakeholders., then the next step in your Agile journey is to achieve your Advanced Certified Scrum Product Owner (A-CSPO?) certification.