The risks of Amazon's virtual warehouse mainly include the following points:

1. Product quality issues: Since the products in the virtual warehouse are provided by third-party sellers, there may be quality problems. If the buyer finds quality problems after purchasing the product, it may bring risks such as bad reviews and returns to the seller.

2. After-sales service issues: The products in the virtual warehouse may be provided by different sellers, so there may be differences in after-sales service. If the buyer needs to enjoy after-sales service after purchasing the product, he may encounter problems such as inadequate service or poor communication with the seller.

3. Logistics issues: The products in the virtual warehouse may be stored in different regions, so there may be certain risks in logistics. For example, the goods may be delayed or damaged during transportation.

4. Inventory risk: Since the products in the virtual warehouse are provided by third-party sellers, there may be insufficient inventory. If the buyer encounters insufficient inventory when purchasing the product, it may affect the buyer's shopping experience and bring risks such as order cancellation to the seller.

5. Competition risk: The goods in the virtual warehouse may compete with the goods of other sellers, so sellers need to face risks such as price wars and homogeneous competition.

6. Amazon platform policy risk: Amazon platform may conduct random inspections on the goods in the virtual warehouse. If the goods are found to have quality problems or violate platform policies, the seller may be punished or even have their store closed.

In summary, Amazon's virtual warehouse does have certain risks. As a seller, you need to control the quality of goods, provide good after-sales service, and plan inventory reasonably to reduce risks. At the same time, understand and comply with Amazon platform policies to ensure the compliance of the store.