While managing a mobile app project, a stakeholder informally asks the project manager to add new features to the current sprint. What should the project manager do?

In an agile environment, the Product Owner is responsible for managing the product backlog, prioritizing features, and representing stakeholder interests. Therefore, any new feature requests or changes to the product scope should be directed to the Product Owner for evaluation and prioritization. This ensures that changes align with the product vision and are properly integrated into the development process. Asking the stakeholder to wait until the next sprint planning or bringing it up at the daily standup bypasses the Product Owner's role in backlog management. Approving the change request unilaterally is incorrect as it undermines the agile process and the Product Owner's authority.