The reasons are:

1. The store has not opened the e-commerce function: For newly opened Douyin stores, the e-commerce function has not yet been opened, and products cannot be sold directly on Douyin, so users will find that purchases are not supported when browsing the products of these stores.

2. Prevent malicious hoarding and speculation: In some popular products or promotional activities, some unscrupulous merchants will use malicious hoarding to speculate on product prices in order to obtain higher profits. This behavior will not only cause unnecessary losses to other consumers, but also disrupt the market order. Therefore, in this case, it is very necessary for merchants to adopt a purchase restriction policy.