How To Fix CL135 - You cannot delete this class on &

CL135 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 135

• Message text: You cannot delete this class on &

What causes this issue?

The valid-from date of the change number you entered is the same as the
current date. This is not allowed.

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?

Please use a change number with a valid-from date that falls after the
current date.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL135 - You cannot delete this class on & ?

  The SAP error message CL135 ("You cannot delete this class on &") typically occurs when you attempt to delete a class in the ABAP Workbench (transaction SE24) that is not eligible for deletion. This can happen for several reasons, including:
  Causes:
  
  
  Class is Used: The class you are trying to delete is being used in other programs, classes, or function modules. SAP does not allow the deletion of classes that are still in use to maintain data integrity and avoid breaking dependencies.
  
  
  Class is a Superclass: If the class is a superclass for other subclasses, it cannot be deleted until all subclasses are deleted or restructured.
  
  
  Transport Requests: If the class is part of a transport request that has not been released, it may prevent deletion.
  
  
  Authorization Issues: You may not have the necessary authorizations to delete the class.
  
  
  System Status: The class may be in a status that does not allow deletion, such as being