Identify all the data sources and measures in the Power BI report that are directly or indirectly dependent on the data warehouse to understand the scope of impact.

Create a comprehensive backup of both the data warehouse and the Power BI report before implementing any changes to ensure data integrity and facilitate recovery if needed.

Engage with stakeholders and team members to communicate the planned changes, gather insights on the report's usage, and assess the potential impact on business processes.

Implement and test the changes in a controlled, non-production environment first, then validate the Power BI report's functionality and data accuracy before proceeding with the production deployment.

All of the above