How To Fix CL022 - Class type &: & & is a standard class

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 022

• Message text: Class type &: & & is a standard class

What causes this issue?

&V2& &V3& with class type &V1& has objects allocated to it and is
defined as the standard class for some of these objects.
A class can only be deleted if it is not defined as the standard class
for any objects allocated to it.

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?

First delete all allocations where this class is the standard class,
then you can delete the class.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL022 - Class type &: & & is a standard class ?

  The SAP error message CL022 indicates that there is an issue related to class types in the ABAP programming environment. Specifically, the message states that the class type you are trying to use is a standard class, which may not be allowed for certain operations or modifications.
  Cause:
  
  Standard Class Usage: The error typically arises when you attempt to create or modify a standard class (a class that is part of the SAP standard delivery) in a way that is not permitted. This could include trying to change the class definition, add methods, or create subclasses in a way that violates SAP's guidelines for standard classes.
  Namespace Issues: If you are working in a namespace that does not allow modifications to standard classes, this error may occur.
  Incorrect Class Type: You may be trying to use a class type that is not intended for the operation you are performing.
  
  Solution:
  
  Check Class Type: Verify that you are using the correct class type for your operation. If you need to extend functionality, consider creating a Z-class (custom class) that inherits from the standard class instead of modifying the standard class directly.
  Use Inheritance: If you need to add functionality, create a subclass of the standard class. This allows you to extend the behavior without modifying the original class.
  Review Documentation: Check the SAP documentation for the specific standard class you are working with to understand its intended use and any restrictions on modifications.
  Consult with SAP Support: If you believe you need to modify a standard class for a valid reason, consult with SAP support or your SAP administrator to explore options or best practices.
  
  Related Information:
  
  ABAP Development Guidelines: Familiarize yourself with SAP's guidelines for ABAP development, especially regarding the use of standard classes and custom enhancements.
  SAP Notes: Search for relevant SAP Notes that may address specific issues or provide guidance on working with standard classes.
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE24 (Class Builder) to inspect the class and its properties.
  
  By following these steps, you should be able to resolve the CL022 error and proceed with your development work in SAP.