The project manager should first meet with the project team to understand the issue and define actions. This is because the project manager needs to analyze the root cause of the problem, identify the impact on the project scope, schedule, cost, and quality, and determine the best course of action to resolve the issue. Raising a change request, escalating the issue, or conducting a quality audit are possible actions that the project manager may take after meeting with the project team, depending on the outcome of the analysis. However, they are not the first steps that the project manager should take in this situation. References: = PMBOK Guide, 6th edition, page 152, section 4.3.1.1 (Work Breakdown Structure); page 121, section 4.2.3.1 (Project Scope Statement); page 115, section 4.1.3.1 (Project Charter); page 112, section 4.1.2.2 (Project Sponsor)