How To Fix MSG_CL_ER168 - Technical name may not be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_CL_ER - Message Class for Enterprise Registry

• Message number: 168

• Message text: Technical name may not be changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MSG_CL_ER168 - Technical name may not be changed ?

  The SAP error message MSG_CL_ER168, which states "Technical name may not be changed," typically occurs in the context of class management in SAP, particularly when dealing with the creation or modification of classes in the Class Builder (transaction code CL02 or CL03).
  Cause:
  This error arises when there is an attempt to change the technical name of a class that is already defined in the system. In SAP, the technical name of a class is a unique identifier, and once a class is created, its technical name cannot be altered. This restriction is in place to maintain data integrity and consistency within the system.
  Solution:
  To resolve this error, you should follow these steps:
  
  
  Check the Class: Ensure that you are not trying to change the technical name of an existing class. If you need a class with a different name, you will have to create a new class instead.
  
  
  Create a New Class: If you need to have a class with a different technical name, you can create a new class with the desired name. Use transaction code CL01 to create a new class.
  
  
  Copy Existing Class: If you want to retain the properties of the existing class but need a different technical name, you can use the "Copy" function in the Class Builder (CL01) to create a new class based on the existing one. This will allow you to create a new class with a new technical name while preserving the attributes of the original class.
  
  
  Review Documentation: If you are unsure about the implications of creating or modifying classes, refer to the SAP documentation or consult with your SAP administrator or a functional consultant.
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  CL01: Create Class
  CL02: Change Class
  CL03: Display Class
  
  
  
  Class Types: Understand the different types of classes in SAP (e.g., single inheritance, multiple inheritance) and how they are used in the system.
  
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or updates related to class management and error handling.
  
  
  User Authorization: Ensure that you have the necessary authorizations to create or modify classes in the SAP system.
  
  
  By following these steps, you should be able to address the MSG_CL_ER168 error effectively.