How To Fix UPWB190 - ABAP class &1 is overwritten

UPWB190 - Overview

• Message type: E = Error

• Message class: UPWB - Messages for Development Class UPWB

• Message number: 190

• Message text: ABAP class &1 is overwritten

What causes this issue?

You have specified an ABAP application class to be generated. The
specified class <AB>&V1&</><AB> </>is currently a subclass of standard
class <AB>CL_UPWB_BSP_APPL</>. Such classes are used to modify the
standard behavior of the application. The classes are not generated but
are created by the Designer so that modifications are not lost every
time a generation is executed.

System Response

If you regenerate the class, the current class <AB>&V1&</> will be
overwritten. It will no longer be a subclass of standard class
<AB>CL_UPWB_BSP_APPL</>. It will also be necessary to regenerate the
class in the Web Interface Builder each time the application is changed.
The advantage of the generated class is that it facilitates complex
modifications.

How to fix this error?

Generate the class only if the subclass does not meet your modification
requirements sufficiently. SAP recommends that you retain the old class
as back up, using another class name.
You will find more information in the F1 documentation on the "Generate
class" setting.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UPWB190 - ABAP class &1 is overwritten ?

  The SAP error message UPWB190, which states "ABAP class &1 is overwritten," typically occurs in the context of ABAP programming when there is a conflict with class definitions. This can happen when a class is redefined or when there are multiple versions of the same class in the system.
  
  Cause:
  
  
  Class Redefinition: The error usually indicates that an ABAP class is being redefined in a way that conflicts with an existing class. This can happen if:
  
  A class is being modified in a way that it conflicts with another class of the same name.
  There are multiple implementations of the same class in different packages or namespaces.
  
  
  
  Transport Issues: If classes are transported between systems (e.g., from development to quality assurance), and there are conflicting versions, this error can arise.
  
  
  Namespace Conflicts: If the class is defined in a global namespace and there is a local class with the same name, it can lead to this