How To Fix OL658 - Interface structures for method & became &

SAP Error Message - Details

• Message type: E = Error

• Message class: OL - Workflow object types: Run-time system

• Message number: 658

• Message text: Interface structures for method & became &

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OL658 - Interface structures for method & became & ?

  The SAP error message OL658 typically indicates an issue related to the interface structures for a method in an Object-Oriented ABAP context. This error can occur when there is a mismatch or inconsistency in the method's interface definition, such as parameters not being correctly defined or implemented.
  Cause:
  
  Mismatch in Method Signature: The method signature in the class definition does not match the implementation.
  Changes in Interface: If the interface of a method has been changed (e.g., parameters added or removed) but the implementation has not been updated accordingly.
  Inconsistent Data Types: The data types of the parameters in the method declaration and implementation do not match.
  Missing Interface Implementation: The method is declared in an interface but not implemented in the class.
  
  Solution:
  
  Check Method Signature: Verify that the method signature in the class definition matches the implementation. Ensure that the parameters, their types, and the return type are consistent.
  Update Implementation: If changes were made to the method's interface, update the implementation accordingly to reflect those changes.
  Recompile the Class: Sometimes recompiling the class can resolve inconsistencies. You can do this by navigating to the class in the ABAP Workbench (SE80) and choosing the option to activate or recompile.
  Check for Inheritance Issues: If the class is inheriting from a parent class or implementing an interface, ensure that the inherited methods are correctly implemented.
  Review Related Classes/Interfaces: If the method is part of a larger framework or system, check related classes and interfaces for any discrepancies.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE80 (Object Navigator) or SE24 (Class Builder) to navigate to the class and method in question.
  Debugging: If the error occurs during runtime, consider using the debugger to trace the execution and identify where the mismatch occurs.
  Documentation: Review the SAP documentation or any relevant notes in the SAP Support Portal for additional context or updates related to this error message.
  
  If the issue persists after following these steps, it may be beneficial to consult with a colleague or reach out to SAP support for further assistance.