When a service vendor requires further clarity on a task, it is essential for the project manager to engage directly with the engineer responsible for the documentation. This approach allows for a detailed review of the service instructions and the identification of any potential gaps or misunderstandings. By discussing the issue with the engineer, the project manager can ensure that the document is clarified and that measures are put in place to prevent similar issues in the future. This aligns with the PMI's emphasis on clear communication and problem-solving within project teams as outlined in the PMBOKGuide and the PMI-PBA reference materials12. References: * PMI's Project Management Professional (PMP)Examination Content Outline1. * PMI's Professional in Business Analysis (PMI-PBA)reference materials2.