How To Fix CL160 - Class type &: & & is in use; note the change to the status

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 160

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

What causes this issue?

This class is used in <DS:GLOS.object_dependencies>object
dependencies</>. Any status changes that you make can cause
inconsistencies.

System Response

In some dependency types, such as <DS:GLOS.constraint>constraints</>,
you can access objects via the class to which they are allocated. If
you have specified the class in one of these dependencies, any status
change can cause inconsistencies.

How to fix this error?

With the function <LS>Environment -> Where-used list</> in the
class maintenance function, you can find out in which object dependen-
cies the class is used.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL160 - Class type &: & & is in use; note the change to the status ?

  The SAP error message CL160 indicates that a class type is currently in use, and it cannot be modified or deleted until it is no longer in use. This message typically arises when you attempt to change the status of a class or make modifications to it while it is being referenced or utilized in other parts of the system.
  Cause:
  
  Active References: The class type you are trying to modify is actively being referenced in other objects, such as instances, methods, or other classes.
  Locked Status: The class may be in a locked status due to ongoing transactions or processes that are using it.
  Transport Requests: If the class is part of a transport request that is currently being processed, it may also lead to this error.
  
  Solution:
  
  Check References: Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to check where the class is being used. Look for any active references that may be preventing changes.
  Release Locks: If the class is locked, you may need to wait for the current transaction to complete or manually release the lock if you have the necessary permissions.
  Change Status: If you need to change the status of the class, ensure that no other processes are using it. You may need to coordinate with other users or teams to ensure that the class is not in use.
  Transport Management: If the class is part of a transport request, ensure that the transport is completed or released before attempting to make changes.
  Consult Documentation: Review SAP documentation or consult with your SAP Basis team for specific guidelines on handling class types and their statuses.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE80 (Object Navigator), SE11 (Data Dictionary), and SE37 (Function Module) to analyze dependencies.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to this error message.
  Development Guidelines: Follow best practices for development in SAP, including proper version control and change management processes to avoid such issues in the future.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team for further assistance.