A SAFe Product Owner (PO) acts as the team's customer representative and collaborates with Product Management and other stakeholders, such as other Product Owners, to define and rank the stories in the Team Backlog in order to ensure that the system or solution effectively addresses program priorities while preserving the technical integrity of the features or components the team is accountable for developing. The PO is the only team member with the authority to accept stories as completed, and they play a vital role in quality