The project team is behind schedule and believes that by omitting the documentation of lessons learned, the desired delivery due date can still be reached. What should the project manager do?

After completing the scope management plan, the project manager determines that no in-house expertise exists to develop a critical product component. Discussion with another project manager reveals that multiple vendors have been engaged in the past for similar jobs.
What should the project manager do next?

During a sprint planning meeting, a stakeholder is told that their requirement is in progress and on track for the final product to be ready in the next two sprints. The stakeholder is very satisfied with the timeline and gives their full support to the agile team. After the meeting, the project sponsor calls the project manager about a large requirement they want the team to work on right away as it has significant business value. What should the project manager do?

You need to convey some very complex, detailed information to the project stakeholders.
What is the best method for communicating this kind of information?

A multinational company is locally developing a digital product using a new technology platform. The only expert on this platform is located in the company's headquarters, and they are responsible for providing support to different countries.
How can the local project manager ensure the involvement of this expert?