The product owner is the person who is responsible for managing the product backlog, which includes adding, removing, or changing items based on stakeholder feedback and business value. The product owner is also the one who can collaborate with the development team and the scrum master to decide if a change can be accommodated in the current sprint or deferred to a future sprint. Therefore, the stakeholder should have asked the product owner to request the change instead of the team member, who is not authorized to make changes to the sprint backlog12.