While deploying new software to 200 users, a missed process caused some users to lose computer data. What should the project manager do first?

The project manager's immediate priority is to understand and mitigate the impact of the data loss. Meeting with the team to discuss the root cause (A) allows for prompt identification of the problem, potential immediate corrective actions, and documentation for future prevention, even while deployment continues. This proactive approach minimizes further damage and ensures the team learns from the incident in real-time. Recording the incident until the final lessons learned session (B) delays critical analysis and risks recurrence. Asking the team to review the incident and provide feedback as lessons learned (C) is a good step, but it's not the first action; the PM needs to lead the discussion to ensure immediate understanding and action. Bringing in a consultant (D) is a reactive and potentially time-consuming step that doesn't address the immediate need to understand and contain the current issue.