Use Hierarchical Facets
To use hierarchical facets in Predictive Merchandiser, do the following:
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Select fields to facet in the Facets query pipeline stage.
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In the Apply Rules query pipeline stage, select Field Name and Field Delimiter to use. This assumes a facet selected in Step 1 can be separated according to a delimiter, for example
/or|.
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Predictive Merchandiser’s facet zone can now display child facets in an expandable list.
