Group 1 - The article discusses the selection of tax classification codes for goods and services, referencing the announcement from the State Administration of Taxation regarding VAT invoice management [2] - It provides an example of issuing a dining service invoice through the electronic tax bureau, highlighting the manual input of the project name and the system's provision of similar options for selection [4] - The article emphasizes the automatic display of the corresponding tax rate in the system after selecting the dining service option [5]