Suggests the best-matching supplier product for each of your Zuper products, to speed up linking your catalog to the supplier's. Matching compares the Zuper product name with supplier product names and brands, only among products stocked at your connected branches, and returns at most one suggestion per product; products that are already linked still get suggestions. Where both products have options, options pairs each Zuper option with the closest supplier option by value. Products with no good match come back with an empty supplier_product. Every requested product must exist (404 otherwise) and the provider must be connected (403 otherwise). Needs a full-access API key; read-only keys are limited to GET requests.