How To Fix CL544 - Class & selected as standard class

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 544

• Message text: Class & selected as standard class

What causes this issue?

You have assigned your object to exactly one class, and have not set
the <DS:GLOS.standard_class>standard class</> indicator.
The system sets the indicator automatically.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL544 - Class & selected as standard class ?

  The SAP error message CL544 indicates that a class has been selected as a standard class, but there is an issue with the configuration or the way the class is being used. This error typically arises in the context of Object-Oriented Programming in SAP, particularly when dealing with class definitions and inheritance.
  Cause:
  
  Incorrect Class Definition: The class you are trying to use may not be defined correctly or may not be inheriting from the correct parent class.
  Standard Class Conflict: The class you are trying to create or modify may conflict with an existing standard class in SAP.
  Namespace Issues: If you are working in a namespace that is not properly defined or is conflicting with standard SAP namespaces, this can lead to issues.
  Transport Issues: If the class is part of a transport request that has not been properly imported or is in a different state, it may cause this error.
  
  Solution:
  
  Check Class Definition: Review the class definition to ensure that it is correctly defined and does not conflict with existing standard classes.
  Use Custom Namespace: If you are creating custom classes, ensure that you are using a proper custom namespace to avoid conflicts with standard SAP classes.
  Review Inheritance: Ensure that the class is inheriting from the correct parent class and that all necessary methods and attributes are properly defined.
  Transport Management: If the class is part of a transport request, ensure that the transport has been successfully imported into the target system.
  Debugging: Use the ABAP debugger to trace the execution and identify where the error is occurring. This can provide insights into what might be going wrong.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on similar issues.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Object-Oriented Programming in ABAP for more details on class definitions and usage.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  ABAP Development Guidelines: Follow best practices for ABAP development, especially when creating or modifying classes, to minimize the risk of such errors.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with an SAP technical consultant or developer who can provide more in-depth assistance.