分类管理 Classification

是SAP里经常会用到的一个功能，如PO的审批，批次，物料的分类等等

CT04-特性

CL02-类

CL20N-分配对象给类

CL22N - Assign Class to Superior Classes

CL24N-分配类给多个对象

CL30N-根据类查找对象

CL31 - Find Object In Class Type

报表：

CT10 - Characteristics List

CT11 - Characteristic Values List

CL6AN - Class List (ALV)

CL6A - Class List

CL6D - Class Without Superior Class

CL6BN - Object List (ALV)

CL6B - Object List

CL6O - Object Comparison

CL2A - Classification Status

CL6C - Class Hierarchy

CLHP - Graphical Hierarchy Maintenance

批量处理：

CL26 - Mass Release of Assignments

CLMM - Mass Change for Assigned Values

首先维护一个Characteristic 然后维护Class ，如果没有相应的Class 可以从Class Type 生成，同样的Class Type 也可以新增

The classification system allows you to use characteristics to describe all types of objects, and to group similar objects in classes – to classify objects, in other words, so that you can find them more easily later.You then use the classes to help you to find objects more easily, using the characteristics defined in them as search criteria. This ensures that you can find objects with similar or identical characteristics as quickly as possible.

1)You use characteristics to describe the properties of objects. You create characteristics centrally in the system.

2)You need classes to classify objects. These classes must be set up. During set up you must assign characteristics to the classes.

3)Once you have created the classes you require for classification, you can assign objects to these classes. You use the characteristics of the class to describe the objects you classify.

通过分类中的自定义特征（Characteristics）来对物料、文档、批次、检验特性等进行自定义分类，系统通过类类型Class Type来区分不同的应用，譬如类类型001为物料分类，类类型022/023为批次分类。

对于一个原材料，它的密度，比热，存储温度等都是它的特性。可以根据这个原材料的特性来判断它生产出来的产品的等级。

对于一台机械设备，它的功耗，一次最长使用时间，以及生产的产品规格等都是它的属性。可以根据它的特性来制定生产计划，工艺流程等。

这就是Characteristic存在的意义。

通常的过程是创建一个或多个Characteristics（CT04），把它组合成一个Class（即分配给一个或多个Class）(CL01/CL02)，然后将这个包含多个特性的class分配给Material。即维护的MM01 Create Material时的Classification View.

例如物料的分类：