If the products sold on Amazon are out of stock, but you want to continue selling, you can take the following methods:

1. Find a new supplier: Find a new supplier to provide products, ensure product quality and reasonable price, and establish a long-term cooperative relationship with them.

2. Purchase inventory: If the product is a hot-selling product or you have enough sales data to support it, you can consider purchasing a certain amount of inventory so that you can continue to sell when the product is out of stock.

3. Choose drop shipping: Choose the drop shipping model, by cooperating with other sellers, let them provide product inventory and ship directly to your customers, you only need to handle orders and customer service.

4. Suspend sales: If you cannot find a new supplier or purchase inventory, and you don’t want to choose drop shipping, you can consider suspending sales and wait for the supply to resume before continuing to sell.

It should be noted that when choosing drop shipping, you need to carefully choose the sellers you cooperate with to ensure that they can ship on time and guarantee product quality. At the same time, it is necessary to establish a good cooperative relationship with them so as to continue cooperation in the future.

In general, drop shipping without source is a common solution, but you need to choose the right method according to your own situation in order to maintain the normal operation of the business and customer satisfaction.