PMP Practice: Obtain Stakeholder Agreement on Scope

Amara Okonkwo-Diallo is managing a custom warehouse automation project for Organized Stampede Labs. During the third month of implementation, the operations director requests that the system include real-time route optimization for delivery trucks—a capability not included in the approved scope baseline. The sponsor is enthusiastic about this addition and suggests the team 'just build it in' since they are already working on the warehouse system. The project is currently on schedule and within budget. However, Lila's technical lead estimates the route optimization feature would require an additional four months and consume 35% of the remaining budget. What should Amara do to address this situation?