The project manager should use the project management plan to document the input from the stakeholders on the minimum viable product that would be acceptable for the project. The project management plan is a document that describes how the project will be executed, monitored, controlled, and closed. It usually includes information such as scope statement, work breakdown structure (WBS), schedule baseline, cost baseline, quality plan, risk plan, communication plan, stakeholder plan, and change management plan. The project management plan can help to define and communicate the project requirements, deliverables, assumptions, constraints, and expectations to all stakeholders involved in the project.

The project management plan would be used to document the input obtained from stakeholders during the meeting to review the requirements and agree on the minimum viable product. The project management plan is a comprehensive document that outlines the approach, scope, schedule, budget, quality, resources, and communication for a project. The document is updated throughout the project lifecycle and serves as a guide for project execution, monitoring, and control. References: CompTIA Project+ Study Guide, Chapter 3: Project Integration Management, Objective 3.3: Identify the components of the project management plan.