How To Fix CL605 - Class type &: class & has no subordinate classes

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 605

• Message text: Class type &: class & has no subordinate classes

What causes this issue?

You have requested a class hierarchy. However, class &V2& with class
type &V1& does not have any subordinate classes, so no hierarchy can be
exploded.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

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 CL605 - Class type &: class & has no subordinate classes ?

  The SAP error message CL605 indicates that a class type (denoted by the first &) does not have any subordinate classes (denoted by the second &). This typically occurs in the context of Object-Oriented Programming in ABAP when you are trying to access or manipulate a class that is expected to have subclasses, but none are defined.
  Cause:
  
  No Subordinate Classes Defined: The primary cause of this error is that the class you are trying to reference does not have any subclasses defined. This can happen if the class is intended to be a base class but has not been extended by any other classes.
  Incorrect Class Type: You might be trying to use a class that is not intended to have subclasses, or you may have made a typo in the class name.
  Class Visibility: The class might be defined but not visible in the current context due to access restrictions or package visibility.
  
  Solution:
  
  Check Class Definition: Verify the class definition in the ABAP Workbench (transaction SE80 or SE24). Ensure that the class you are referencing is indeed intended to have subclasses.
  Create Subordinate Classes: If the class is meant to be a base class, create one or more subclasses that extend it. This can be done in the Class Builder (SE24) by creating a new class and specifying the base class.
  Correct Class Name: Double-check the class name in your code to ensure there are no typos or incorrect references.
  Review Class Visibility: Ensure that the class is accessible in the context where you are trying to use it. Check the package and visibility settings of the class.
  Consult Documentation: If the class is part of a standard SAP package, refer to the SAP documentation or notes for any specific requirements or known issues related to that class.
  
  Related Information:
  
  Transaction Codes: Use SE80 (Object Navigator) or SE24 (Class Builder) to explore and manage classes.
  ABAP Documentation: Review the ABAP documentation for Object-Oriented Programming to understand class hierarchies and inheritance.
  SAP Notes: Check SAP Notes for any known issues or updates related to the specific class you are working with.
  
  By following these steps, you should be able to resolve the CL605 error and ensure that your class structure is correctly defined and utilized.