How To Fix 1W043 - Supertype resolution error

SAP Error Message - Details

• Message type: E = Error

• Message class: 1W - Workplace Plug-In Messages

• Message number: 043

• Message text: Supertype resolution error

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 1W043 - Supertype resolution error ?

  The SAP error message 1W043 indicates a "Supertype resolution error." This error typically occurs in the context of ABAP programming and object-oriented programming within SAP systems. It usually arises when the system is unable to resolve the supertype of a class or interface, which can happen for several reasons.
  Causes of the Error
  
  
  Incorrect Class Hierarchy: The class or interface being referenced may not have a valid supertype defined, or there may be a circular reference in the class hierarchy.
  
  
  Missing or Incomplete Definitions: The supertype may not be defined in the system, or there may be issues with the transport of the class definitions.
  
  
  Namespace Issues: If the class or interface is in a different namespace and not properly referenced, it can lead to resolution errors.
  
  
  Changes in Class Structure: If the class structure has been modified (e.g., a supertype was deleted or renamed), it can lead to this error.
  
  
  Transport Issues: If the class definitions were transported from one system to another and the transport was incomplete or failed, it could lead to this error.
  
  
  Solutions
  
  
  Check Class Hierarchy: Review the class hierarchy in the Class Builder (transaction SE24) to ensure that all supertypes are correctly defined and that there are no circular references.
  
  
  Verify Class Definitions: Ensure that all classes and interfaces involved in the hierarchy are correctly defined and activated. You can do this by checking the relevant classes in SE24.
  
  
  Check Transport Requests: If the error occurred after a transport, verify that all necessary objects were included in the transport request and that the transport was successful.
  
  
  Namespace Verification: Ensure that the classes/interfaces are correctly referenced, especially if they are in different namespaces. Use the correct naming conventions and ensure that the necessary authorizations are in place.
  
  
  Re-activate Classes: Sometimes, simply re-activating the classes involved can resolve the issue. You can do this in SE24 by selecting the class and choosing the "Activate" option.
  
  
  Debugging: If the error persists, consider using the ABAP debugger to trace where the error occurs in the code. This can provide insights into what is causing the resolution failure.
  
  
  Related Information
  
  
  Transaction Codes: 
  
  SE24: Class Builder
  SE80: Object Navigator
  SE11: Data Dictionary (for checking related database objects)
  
  
  
  Documentation: Refer to SAP Help Portal or the ABAP documentation for more details on object-oriented programming and class definitions.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or ABAP development team for further assistance.