the invoice assignment code is the value-added tax classification code assigned to this commodity.

according to the information notice displayed by the accounting school, invoice coding is commonly known as simplified code, but it is actually code. The main purpose of setting customer code is to classify customers by code classification. A superior code can have several subordinate codes, and a superior code is a big category.

if 11 is set as the superior code, which represents a large category such as apples, then 11111 as the subordinate code is a certain apple, such as Yanyuan apples. In the same way, the 12 category can represent pears, and the following categories can also be set. By coding, the system will automatically sort the products according to the coding.