How To Fix CU731 - Class type & cannot be used for materials

CU731 - Overview

• Message type: E = Error

• Message class: CU - Variants / configuration messages

• Message number: 731

• Message text: Class type & cannot be used for materials

What causes this issue?

This class type has not been defined in Customizing as allowed for
variant configuration.

How to fix this error?

Choose a class type which is allowed for variant configuration.

Error message extract from SAP system. Copyright SAP SE.

CU731 - Details

• The SAP error message CU731 indicates that a specific class type cannot be used for materials. This typically occurs when there is an issue with the configuration of class types in the classification system of SAP. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Class Type Configuration: The class type you are trying to use is not configured to be used for materials. In SAP, class types are defined in the classification system, and each class type can have specific settings that determine its applicability.
  Material Type Restrictions: Certain class types may be restricted to specific material types. If the material you are trying to classify does not match the allowed material types for that class type, you will encounter this error.
  Missing Authorizations: Sometimes, the user may not have the necessary authorizations to use the specified class type for materials.
  
  
  Solution:
  
  
  Check Class Type Configuration:
  
  Go to transaction code CL02 (Change Class)