Final answer:
During project execution, if the stakeholder register is no longer accurate, the Project Manager should review and update it through the Identify Stakeholders process to ensure all relevant stakeholders are considered.
Step-by-step explanation:
During the execution of a project, if the stakeholder register is no longer accurate, the Project Manager should review the stakeholder register and carry out the Identify Stakeholders process. This will help identify and assess the stakeholders and update the stakeholder register with accurate information. By doing so, the project can address the needs and expectations of all relevant stakeholders.
Learn more about Managing stakeholders during project execution