Asked by David K.
Answer engines treat hasPart relationships as 'references' rather than 'authority signals'—they flatten the hierarchy and cite the most authoritative leaf node directly. Your real lever: restructure as schema.org/AggregateOffer where your platform is the schema.org/Seller, with individual vendor capabilities listed as schema.org/Offer objects without independent URLs exposed in markup. This makes your platform the canonical aggregation layer, not a collection index. If Perplexity still cites vendors directly after this restructure, you're hitting a model-level preference for disintermediation—no schema fix exists.