The root cause analysis indicated that a component added as part of a change request was not tested, which led to the product being rejected during the quality control check. This suggests a gap in the change control process where the quality management artifacts, such as test plans or checklists, were not updated to include the new component for testing. Therefore, the project manager should review and update the change control process to ensure that all aspects of a change, including quality management artifacts, are considered and updated accordingly. This action will help prevent similar issues in future and ensure that changes are fully integrated into the project’s quality management framework.

The answer is verified using the principles found in the PMBOK® Guide, which outlines the importance of integrated change control and its impact on project quality management. The guide emphasizes the need to review and update all project documents, including quality management plans, to accommodate changes within the project. Additionally, the Professional in Business Analysis (PMI-PBA) reference materials support the need for thorough documentation and communication of changes to prevent quality issues and ensure project success.