PMP Practice: Obtain Stakeholder Agreement on Scope

Aoife Gallagher-Flynn is leading an agile project at Peppermill Aerospace to develop a sustainability tracking dashboard for corporate clients. During sprint planning, the product owner adds three new user stories focused on carbon offset integration. Two key stakeholders from the sales team immediately object, stating these features were never discussed and will delay their priority request for multi-currency support, which they need for an upcoming client demo in six weeks. The development team estimates the carbon offset work would consume most of the next two sprints. The product owner insists the carbon features align with the company's new ESG strategy announced last month. Tension is rising, and the sprint planning meeting has stalled. What should Aoife do FIRST?