What is the commodity code set in the electronic invoice directory?

Hello, the electronic invoice catalog has set the commodity code, which is the commodity number coded by the merchant for good management. Tax classification code: 304080 10 1 tax classification name: property management service invoiced commodity name: * enterprise management service * property fee. 1. Determine the category of invoiced items, such as goods, services, sales services, intangible assets, real estate, non-taxable items without sales behavior, etc. 2. In the selected categories, sales services and other subcategories are: transportation services, postal services, telecommunications services, modern services, construction services, financial services and life services. 3. Add commodity tax classification code (1), and click "Add" in the commodity code interface; (2) Enter the complete name of goods, such as steel bars, in the setting interface "Commodity Name"; (3) Click the button after "tax classification code" to enter the tax classification code selection interface, enter keywords such as "steel bar" in "Search", find the corresponding or similar tax classification code, view the "description" after the code, and double-click to select the code whose description is closest to the commodity. (4) Return to the commodity code setting interface, confirm the commodity tax rate, unit price, price including tax, preferential policies and other information, and click Save to set the commodity code successfully.