1. Log in to Ctrip's merchant background. Enter the commodity management page. On the commodity management page, find the commodity that needs to fill in the commodity source, click the edit button, find the commodity source field on the commodity editing page, and click the Select Source button.
2. In the pop-up commodity source selection page, select the source of commodities, such as own products, agent products and cooperative products. Fill in the corresponding information according to the selected commodity source. Self-owned products need to fill in information such as manufacturer and brand, and agent products need to fill in information such as agent name and brand.
3. After filling in the commodity source information, click the Save button to save the commodity information.