The Project Management Professional (PMP) emphasizes the importance of stakeholder management and engagement in successful project execution. When resistance is encountered, it's crucial to understand the concerns of the stakeholders and address them appropriately. This could involve revisiting the stakeholder engagement plan to ensure it effectively addresses the needs and concerns of all stakeholders. This approach aligns with the guidance provided in the Professional in Business Analysis Reference Materials, which also underscores the importance of stakeholder engagement and the need to address stakeholder concerns in a timely and effective manner. References: Project Management Professional (PMP) Certification, PMBOK Guide, Professional in Business Analysis Reference Materials. Please refer to the respective guides for more detailed information.