To set up a shipping label on AliExpress, you need to follow these steps:

1. Log in to your AliExpress account and go to the "My AliExpress" page.

2. On the "My AliExpress" page, select "Store Management" > "Product Management".

3. On the "Product Management" page, find the product for which you want to set up a shipping label and click "Edit Product".

4. On the product editing page, select the "Labels" tab.

5. On the Labels tab, you can add, edit, or delete labels. When adding labels, you can choose to add multiple labels, and each label can have a different name and description.

6. Click the "Add Label" button, fill in the label information and set the label name, description and other parameters, and then click the "Save" button.

After completing the above steps, the shipping label will be displayed on the product. Different products may require different labels to distinguish different shipping methods, such as express delivery, logistics, etc.