The Doudian search code is a unique code designed to facilitate users to search for products on the Douyin e-commerce platform. To generate a Doudian search code, you can follow the steps below:

1. Log in to the backend management system of Doudian (Douyin e-commerce platform).

2. Go to the product management page and select the product for which you want to generate a search code.

3. On the product editing page, find "Search Code" or a similar option.

4. If there is an option to manually generate a search code, you can enter or select the corresponding search code. In most cases, the search code can be composed of numbers, letters or symbols, and the length may be limited.

5. Save and publish the product information, and the generated search code will be associated with the product