When a customer requirement change is identified, the project manager should first validate the change with the product owner and the development team. This ensures that the change is feasible and assesses its impact on the project. The PMBOK Guide outlines the importance of involving stakeholders in decision-making processes and the need for integrated change control to manage changes effectively. : The response is based on general project management principles as outlined in the PMBOK Guide and the standard practices of stakeholder engagement and integrated change control that are part of the PMP's body of knowledge