• Active Relationship: • This is the primary relationship that Power BI uses when you create visualizations. • It's the default relationship that is active when you build reports. • Active relationships are typically used in most scenarios to create visuals and calculations. • Inactive Relationship: • An inactive relationship is an additional relationship that you can define between tables, but it is not used by default. • You might use inactive relationships when you want to create alternative calculations or scenarios. • Inactive relationships are particularly useful when you have multiple relationships between the same tables.