I think you need to implement an IIndexingProviderPreProcessor
as in Campaign prices stop working then adding custom IIndexingProviderPreProcessor to move the values from all the variants into one field that you are using for the filtering.
I think you need to implement an IIndexingProviderPreProcessor
as in Campaign prices stop working then adding custom IIndexingProviderPreProcessor to move the values from all the variants into one field that you are using for the filtering.