How To Fix CL523 - Activity not allowed for a class

CL523 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 523

• Message text: Activity not allowed for a class

What causes this issue?

You want to display data for an object. However, the cursor is on a
class.

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?

Place the cursor on an object that is not a class.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL523 - Activity not allowed for a class ?

  The SAP error message CL523 ("Activity not allowed for a class") typically occurs when you attempt to perform an operation on a class that is not permitted due to its configuration or status. This error is often encountered in the context of Object-Oriented Programming in ABAP, particularly when dealing with class definitions, methods, or attributes.
  Causes:
  
  Class Status: The class may be in a status that does not allow certain activities. For example, if the class is marked as "final" or "abstract," certain operations may be restricted.
  Authorization Issues: The user may not have the necessary authorizations to perform the action on the class.
  Incorrect Class Type: The operation may not be applicable to the type of class you are working with (e.g., trying to instantiate an abstract class).
  Locked Objects: The class or its components may be locked by another user or process, preventing modifications.
  
  Solutions:
  
  Check Class Status: Verify the status of the class in