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Data & Analytics · Advanced

Cross-Filter Direction

The direction in which a Power BI relationship propagates filters: single (one side to many side) or both (bidirectional).

Definition

Single direction is the default and recommended. Bidirectional filtering can introduce ambiguity and performance costs and should be limited, for example to bridge tables in many-to-many patterns, or applied in a specific measure with CROSSFILTER.

Exam tip

Avoid enabling bidirectional filtering broadly; use CROSSFILTER in a measure when needed.

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