When faced with a key stakeholder who is refusing to participate and disagrees with the project team's approach, it is essential for the project manager to engage in proactive communication to resolve the disagreement. Scheduling a meeting as soon as possible allows for an open dialogue where concerns can be addressed, and a mutually agreeable approach can be developed. This aligns with the principles of stakeholder engagement and communication management as outlined in the PMBOK guide, which emphasizes the importance of involving stakeholders in decision-making processes and resolving issues through collaboration1.
References:
* PMBOK Guide and Standards1
* Project Management Academy article on handling unresponsive key project stakeholders1
* ExamTopics discussion on similar PMP exam question2