How To Fix CL158 - Class type &: & & is in use; note the change to the status

CL158 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 158

• Message text: Class type &: & & is in use; note the change to the status

What causes this issue?

&V2& &V3& of class type &V1& is used in configurable objects
(BOMs, task lists).

System Response

The system checks the usages that exist. Any status change that you
make can cause inconsistencies.

How to fix this error?

<DS:TRAN.CSC5>Proceed</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.

CL158 - Details

• The SAP error message CL158 indicates that a class type is currently in use, which prevents certain changes from being made to it. This message typically arises when you attempt to modify a class that is being referenced or utilized in some way, such as being instantiated in an object or being used in a program.
  
  Cause:
  
  
  Active Usage: The class type you are trying to modify is currently being used in the system. This could be due to:
  
  Instances of the class being created.
  The class being referenced in other programs or classes.
  The class being part of a transaction that is currently active.
  
  
  
  Locking Mechanism: SAP employs a locking mechanism to prevent changes to objects that are in use, ensuring data integrity and consistency.
  
  
  
  Solution:
  
  
  Check Usage: Identify where the class is being used. You can do this by:
  
  Using transaction codes like SE80 (Object Navigator) or SE11 (Data Dictionary) to find references to the class.
  Checking for