How To Fix R7B328 - Interface method &1 of class &2 not implemented

SAP Error Message - Details

• Message type: E = Error

• Message class: R7B - BW Metadata (InfoCube, InfoObject, InfoObject catalog)

• Message number: 328

• Message text: Interface method &1 of class &2 not implemented

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message R7B328 - Interface method &1 of class &2 not implemented ?

  The SAP error message R7B328, which states "Interface method &1 of class &2 not implemented," typically occurs in the context of ABAP programming when a class that implements an interface does not provide an implementation for one or more methods defined in that interface. This can lead to runtime errors when the system attempts to call the unimplemented method.
  Cause:
  
  Missing Implementation: The class that is supposed to implement the interface has not provided an implementation for one or more of the methods defined in the interface.
  Incorrect Class Definition: The class may not be correctly defined as implementing the interface, or there may be a mismatch in the method signatures.
  Changes in Interface: If the interface has been modified (e.g., new methods added) and the implementing class has not been updated accordingly, this error can occur.
  
  Solution:
  
  
  Implement Missing Methods: Check the interface definition and ensure that all methods are implemented in the class. You can do this by:
  
  Navigating to the interface in the ABAP Workbench (SE80 or SE11).
  Reviewing the list of methods and comparing them with the methods in the implementing class.
  Implementing any missing methods in the class.
  
  
  
  Check Method Signatures: Ensure that the method signatures in the class match those defined in the interface. This includes the method name, parameters, and return types.
  
  
  Activate the Class: After implementing the missing methods, make sure to activate the class to ensure that the changes take effect.
  
  
  Review Changes: If the interface was recently changed, review the changes and update the implementing class accordingly.
  
  
  Debugging: If the issue persists, consider using the ABAP debugger to trace where the error occurs and gather more context about the call stack and the state of the application.
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes SE80 (Object Navigator) or SE11 (Data Dictionary) to navigate to the relevant classes and interfaces.
  Documentation: Review the SAP documentation for interfaces and classes to understand the requirements for implementing interface methods.
  SAP Notes: Check the SAP Support Portal for any relevant notes or updates related to this error message, as there may be specific patches or recommendations based on your SAP version.
  
  By following these steps, you should be able to resolve the R7B328 error and ensure that your class correctly implements the required interface methods.