How To Fix /SMB/RUNTIME_ABAP002 - Class &1 does not implement the required interface &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/RUNTIME_ABAP -

• Message number: 002

• Message text: Class &1 does not implement the required interface &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/RUNTIME_ABAP002 - Class &1 does not implement the required interface &2 ?

  The SAP error message /SMB/RUNTIME_ABAP002 Class &1 does not implement the required interface &2 indicates that a specific ABAP class (denoted by &1) is expected to implement a certain interface (denoted by &2), but it does not. This can occur in various scenarios, such as when a class is expected to conform to a certain contract defined by an interface, but the implementation is missing or incorrect.
  Cause:
  
  Missing Implementation: The class does not implement all the methods defined in the required interface.
  Incorrect Class Definition: The class may not be correctly defined to implement the interface.
  Changes in Interface: If the interface has been modified (e.g., methods added or changed), the class may need to be updated accordingly.
  Typographical Errors: There may be a typo in the class name or interface name when trying to implement it.
  
  Solution:
  
  
  Check Class Implementation:
  
  Open the ABAP class in the ABAP Workbench (transaction SE80 or SE24).
  Verify that the class implements the required interface by checking the "Interfaces" tab.
  Ensure that all methods defined in the interface are implemented in the class.
  
  
  
  Implement Missing Methods:
  
  If any methods are missing, implement them in the class. You can do this by copying the method signatures from the interface and providing the necessary logic.
  
  
  
  Check for Changes in the Interface:
  
  If the interface has been modified, review the changes and update the class implementation accordingly.
  
  
  
  Correct Typographical Errors:
  
  Double-check the names of the class and interface for any typographical errors.
  
  
  
  Activate the Class:
  
  After making changes, ensure that the class is activated. You can do this by clicking the "Activate" button in the ABAP Workbench.
  
  
  
  Testing:
  
  After implementing the necessary changes, test the functionality to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Transaction Codes: Use SE80 (Object Navigator) or SE24 (Class Builder) to work with classes and interfaces.
  Documentation: Review the documentation for the specific interface to understand the required methods and their expected behavior.
  Debugging: If the error persists, consider using the ABAP debugger to trace the execution and identify where the class is being called without the required interface implementation.
  
  By following these steps, you should be able to resolve the error message and ensure that the class correctly implements the required interface.