To inform your manager about your interest in a vacant position, you should schedule a meeting to discuss your career goals and express your interest in the specific role. You can then highlight your relevant skills and experience, demonstrating how you can contribute to the team and company. It's also important to reiterate your commitment to your current role and maintain open communication throughout the application process. Here's a more detailed approach:1. Schedule a Meeting:Request a one-on-one meeting with your manager to discuss your career aspirations and express your interest in the open.