Final answer:
The first meeting in the project planning phase is typically a kickoff meeting where the project team, stakeholders, and the project sponsor come together to discuss project objectives, requirements, and expectations.
Step-by-step explanation:
The first meeting among the project team, stakeholders, and the project sponsor in the project planning phase is typically known as a kickoff meeting.
During this meeting, the project team and stakeholders come together to introduce themselves, discuss the project objectives, requirements, and expectations, and establish a common understanding of the project scope. The project sponsor, who is usually a senior executive or manager, also participates in the kickoff meeting to provide high-level guidance and support for the project.