Power BI consultant enhance collaboration by setting up shared workspaces where team members can access, edit, and share reports in real time. They configure Power BI’s collaboration features, allowing different departments to work together on projects using live data. Consultants also implement row-level security, ensuring that each team member sees only the data relevant to their role. By creating interactive, accessible dashboards that multiple users can update or comment on, consultants help teams make decisions based on a shared understanding of the data, fostering a culture of collaboration and transparency.