Importers can use a small trial order to validate sales representatives' signing authority, but the trial must retain complete evidence. Link the operating entity, authorization chain, premises, and shipment history to actual arrival, use, or claim results to check whether supplier statements are fulfilled. Before scaling purchases, adjust contract terms and sampling scope based on the frequency of deviations, and prepare a written due-diligence conclusion before signing or paying the deposit.

For internal processes, see How do I evaluate a Chinese auto exporter without visiting China?. For a review based on an actual Chilean import order, submit the destination country, model, quantity, and existing documents through WhatsApp, noting the unresolved sales-representative signing-authority item in supplier due diligence.