Hi, Unfortunately Sankey and Network diagrams are only available in SAS Visual Analytics Explorer which does not support filter interaction between objects. I'm not aware of a work-around in 7.4 though.
We do support this kind of interaction in either VA 7.5 or in any of the newer SAS Viya based versions (VA 8.x). And yes, a node selection in a network would trigger the auto filtering of other visualizations including Sankey.
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