When selling without a source of goods on the Temu platform, the specific operation of labeling may involve the following aspects:

1. **Use a virtual printer**: Merchants without a source of goods can install virtual printer software on their computers, print the delivery note into a PDF version, and then send it to the cooperating supplier or third-party logistics service provider, who will be responsible for printing and affixing it to the package.

2. **Download packing labels**: In the delivery list of the Temu platform, merchants can download the product packing labels for each batch of goods. These labels need to correspond to the goods in the package one by one to ensure that the warehouse can receive the goods correctly.

3. **Combined container shipment**: If merchants have multiple SKU packages to ship, they can choose to let logistics companies such as SF Express to combine containers for shipment, and the outer box only needs to be affixed with a logistics label.

4. **Dangerous goods label**: If the goods belong to a specific category of dangerous goods, such as Class 9 dangerous goods, the corresponding dangerous goods label needs to be affixed to the outer packaging, and the UN number needs to be indicated. If it is shipped by air, a label that is only for full-cargo aircraft transportation must be affixed to the outer packaging.

5. **Packing and labeling services**: Merchants can also choose a professional cross-border e-commerce drop shipping platform, such as Shopee Cloud Warehouse, which provides services such as packing, labeling, and shipping.

6. **Pay attention to size specifications**: When printing labels, you need to pay attention to the paper size specifications of the printer to ensure that the size of the label meets the requirements.

7. **Timely delivery**: In order to comply with the platform's shipping rules, merchants should ensure that all packages can be labeled and shipped within the specified time.

In short, labeling is an important link when selling without a source of goods. Merchants need to ensure the correctness and compliance of the labels to avoid problems in the logistics process. At the same time, arrange the delivery time reasonably to ensure that customers can receive the goods in time.