To open a through train on Taobao to promote unpopular products, first select the right keywords and product descriptions, then set appropriate bids and daily budgets. Optimize product titles, pictures, and detail pages to increase conversion rates.

It is recommended to use Taobao data analysis tools to find potential customers and set up precise targeted delivery. At the same time, cooperate with authoritative Internet celebrities, bloggers, etc. to promote products and increase product exposure. Finally, closely monitor data and continuously optimize promotion strategies to achieve better results.