How To Fix CL134 - You cannot delete class here: assignments exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 134

• Message text: You cannot delete class here: assignments exist

What causes this issue?

You can only delete a class with allocations using the function
<LS>Edit -> Special functions -> Delete class w. vals</> from the
initial screen of a class maintenance function.

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?

If you want to delete a class with allocations, choose the function
above or start report <ZH>RMCLKDEL</>.
If a large number of objects (> 50) is allocated to the class, run the
program in the background to avoid timeouts.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL134 - You cannot delete class here: assignments exist ?

  The SAP error message CL134, which states "You cannot delete class here: assignments exist," typically occurs when you attempt to delete a class in the SAP system that has existing assignments or dependencies. This is a common issue in SAP's Object-Oriented programming environment, particularly in the context of ABAP classes.
  Cause:
  The error is triggered because the class you are trying to delete is still being referenced or used in other objects or components within the SAP system. These references can include:
  
  Inheritance: The class may be a superclass for other subclasses.
  Implementations: The class may be implementing interfaces that are still in use.
  Associations: Other classes, programs, or function modules may be using this class.
  Active Instances: There may be instances of the class that are currently active or in use.
  
  Solution:
  To resolve this error, you need to identify and remove the dependencies associated with the class before you can delete it. Here are the steps you can take:
  
  
  Check for Subclasses: Look for any subclasses that inherit from the class you want to delete. You can do this by using transaction code SE11 (Data Dictionary) or SE80 (Object Navigator) to check the class hierarchy.
  
  
  Check Implementations: If the class implements any interfaces, ensure that those interfaces are not being used elsewhere.
  
  
  Search for References: Use transaction code SE84 (Repository Information System) or SE80 to search for references to the class in other programs, function modules, or classes. You can search for the class name to find where it is being used.
  
  
  Remove Dependencies: Once you have identified the dependencies, you will need to either delete or modify them to remove the references to the class you want to delete.
  
  
  Delete the Class: After ensuring that there are no remaining references or dependencies, you should be able to delete the class without encountering the error.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11, SE80, and SE84 for navigating and managing classes and their dependencies.
  Documentation: Review SAP documentation or help resources for more detailed information on class management and object-oriented programming in ABAP.
  Testing: After making changes, ensure to test the system to confirm that the removal of the class does not affect other functionalities.
  
  By following these steps, you should be able to resolve the CL134 error and successfully delete the class in question.