How To Fix CL521 - Object type & not defined as classifiable object

CL521 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 521

• Message text: Object type & not defined as classifiable object

What causes this issue?

Object type &V1& is not defined as classifiable. Before you can
classify an object, you must define the object type concerned (for
example, material, document, task list) as classifiable in Customizing
for <ZH>Classification</>.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

For information on how to define object types as classifiable, see the
IMG for <ZH>Classification</>.

Error message extract from SAP system. Copyright SAP SE.

CL521 - Details

• The SAP error message CL521 indicates that the specified object type is not defined as a classifiable object in the system. This typically occurs in the context of classification in SAP, where certain object types are expected to be classified but are not set up correctly in the system.
  
  Cause:
  
  Object Type Not Defined: The object type you are trying to classify has not been defined in the classification system.
  
  Configuration Issues: There may be configuration issues in the classification settings that prevent the object type from being recognized as classifiable.
  Missing Customization: The necessary customization for the object type to be classified may not have been performed.
  
  
  Solution:
  
  
  Define Object Type:
  
  Go to the transaction code CL02 (Change Class) or CL01 (Create Class) in SAP.
  Check if the object type is defined in the classification system. If not, you may need to create a new class for the object type.
  Ensure that the object type is assigned to