Power BI developers facilitate collaboration by creating shared workspaces where team members can access, edit, and publish reports. They assign role-based permissions, ensuring the right individuals have appropriate access levels. Power BI developer utilize shared datasets to centralize data models, reducing duplication and improving consistency. By implementing dataflows, they allow teams to use standardized data sources. Reports are published to the Power BI service, enabling teams to view and interact with them online or through mobile apps. These shared environments foster transparency, improve communication, and ensure all stakeholders have access to real-time insights for collaborative decision-making.