I've got mapping within my indexed entity with looks like this:

    @ManyToMany(fetch = FetchType.LAZY)
    @JoinTable(name = "phrase_tag",
            joinColumns = @JoinColumn(name = "phrase_id", referencedColumnName = "id"),
            inverseJoinColumns = @JoinColumn(name = "tag_id", referencedColumnName = "id"))
    @Facet(forField = "tags.id")
    @IndexedEmbedded(includeEmbeddedObjectId = true)
    public Set<Tag> getTags() {
        return tags;
    }

I was using faceting on tag Ids in version 5.0.1.Final. There is nothing indexed in Tag entity except for it's Id. After switching to version 5.3.0.Final I added @Facet(forField = "tags.id") to mapping. However I keep getting this HSEARCH000268 error saying that "Facet request 'tagsFacetRequest' tries to facet on field 'tags.iid' which either does not exists or is not configured for faceting".