How To Fix OO091 - Interface &1 is implemented by class &2

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 091

• Message text: Interface &1 is implemented by class &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO091 - Interface &1 is implemented by class &2 ?

  The SAP error message OO091 indicates that there is an issue related to the implementation of an interface in ABAP (Advanced Business Application Programming). Specifically, it means that the interface specified in the error message is being implemented by a class, but there may be a problem with the implementation or the way it is being referenced.
  Cause:
  
  Incorrect Interface Implementation: The class that is supposed to implement the interface may not be correctly implementing all the methods defined in the interface.
  Missing Methods: The class may be missing one or more methods that are required by the interface.
  Incorrect Class Reference: The class reference in the code may be incorrect or may not match the expected class that implements the interface.
  Visibility Issues: The class or interface may not be visible in the current context due to scope or access issues.
  
  Solution:
  
  
  Check Interface Implementation:
  
  Open the class in the ABAP Workbench (SE80 or SE24).
  Verify that all methods defined in the interface are implemented in the class.
  Ensure that the method signatures match exactly (including parameters and return types).
  
  
  
  Implement Missing Methods:
  
  If any methods are missing, implement them in the class according to the interface definition.
  
  
  
  Verify Class Reference:
  
  Check the code where the interface is being used to ensure that the correct class is being referenced.
  Make sure that the class is instantiated correctly if it is being used in a context where an object is required.
  
  
  
  Check Visibility:
  
  Ensure that the class and interface are both accessible in the context where the error occurs. This may involve checking package visibility or transport requests.
  
  
  
  Recompile:
  
  After making changes, recompile the class and any dependent objects to ensure that the changes take effect.
  
  
  
  Related Information:
  
  Transaction Codes: Use SE80 (Object Navigator) or SE24 (Class Builder) to navigate to the class and interface.
  Documentation: Review the SAP documentation for interfaces and classes to understand the requirements for implementation.
  Debugging: If the error persists, consider using the debugger to trace where the error occurs in the code.
  
  By following these steps, you should be able to resolve the OO091 error and ensure that the interface is correctly implemented by the class.