In project management, a temporary project can be:

Just prior to a project's execution phase, a project manager notices that the client mentioned some mission critical requirements. These requirements will dramatically impact the project's timeline and budget.
What should the project manager do?

A project is nearing completion when the project manager learns that a change in market regulations may impact the project, what sn6uld the project manager do?

A project manager is acting as a scrum master in a hybrid project and is dealing with a conflict between team members.
What strategy should be used to handle this conflict?

A project manager assigned to an education project needs to train a workforce in application development. The customer is responsible for providing the training center, and the deadline to start the first training is in 2 weeks. The customer calls to say that the center will not be available in 2 weeks due to some unforeseen problems.
What should the project manager do next?