How To Fix CL592 - Class type & could not be changed

CL592 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 592

• Message text: Class type & could not be changed

What causes this issue?

Conversion using program RCCLUKA2 simultaneously adjusts the Customizing
of the specified class type. An error occurred when accessing the
related database table.

System Response

Program RCCLUKA2 is terminated. No conversion takes place, and the
Customizing remains unchanged.

How to fix this error?

Check whether there is any concurrent access to the tables TCLA, TCLAO,
or TCLAX, or whether the tables TCLAO or TCLAX already contain entries
for the specified class type.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

CL592 - Details

• The SAP error message CL592, which states "Class type & could not be changed," typically occurs when there is an attempt to change the class type of a class in the SAP system, but the system does not allow this change due to certain restrictions or conditions.
  
  Cause:
  
  
  Class Type Restrictions: In SAP, class types (e.g., class type 001 for material classes, class type 002 for service classes, etc.) are predefined and have specific characteristics. Changing the class type of an existing class is not allowed if it violates the integrity of the data or the relationships established in the system.
  
  
  Existing Dependencies: If there are existing dependencies or references to the class (e.g., objects, attributes, or methods), the system may prevent changes to ensure data consistency.
  
  
  Authorization Issues: The user may not have the necessary authorizations to make changes to the class type.
  
  
  System Configuration: Certain configurations in the system may restrict changes to