A project manager receives a clear project charter from the PMO, but during scope management some requirements differ from those in the charter. What should the project manager do?

The project charter provides high-level project scope. When detailed requirements during scope management differ, these are considered changes to the approved scope. The correct action is to formally manage these changes. Registering them in the configuration management plan and submitting them to the Change Control Board (CCB) ensures they are reviewed, approved, or rejected systematically, maintaining project control. Modifying the project baseline for minor changes without formal review bypasses change control. Using focus groups and brainstorming is a technique for gathering requirements, not for managing changes to already chartered scope. Explaining potential impacts to the sponsor is part of the change request process but doesn't replace formal change control.