The time it takes for new products on Amazon to be sold varies depending on the product, market, and other factors. Some products may quickly get orders within a few days of being launched, while other products may take longer to attract buyers.

Here are several factors that affect the time it takes for new products to be sold:

1. Product selection: Choosing products that are in demand and competitive can increase the speed of new product orders.

2. Product listing: Ensuring that product information is accurate, clear, and attractive can increase the speed of new product orders.

3. Amazon advertising: Using Amazon advertising tools to increase product exposure and visibility can increase the speed of new product orders.

4. Promotional activities: Using the promotional tools provided by Amazon to attract buyers to buy new products can increase the speed of new product orders.

5. Product reviews and feedback: Actively seeking buyers' product reviews and feedback can increase the speed of new product orders.

In short, the length of time it takes for a new product to be sold depends on many factors. The key is to continuously optimize product information, advertising and promotion strategies to increase product exposure and sales conversion rate.