If buyers can browse product quotations, specifications, and categories in advance before the formal video meeting starts, the meeting itself can skip large amounts of time spent introducing what each product is and can focus directly on discussing details for items the buyer is interested in. This saves time for both parties—the buyer can do initial screening beforehand, and the seller only needs to dive deep during the meeting into items of interest, naturally improving transaction efficiency. Conversely, if every meeting starts from scratch with catalog introductions, the buyer's patience and time are limited, and they easily lose interest before seeing the products that best suit their needs. Therefore, organizing product data and distributing the catalog in advance is a prerequisite for online meetings to be effective, not merely a supporting tool.