How To Fix RSDHA189 - Runtime class '&1' does not implement interface '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 189

• Message text: Runtime class '&1' does not implement interface '&2'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA189 - Runtime class '&1' does not implement interface '&2' ?

  The SAP error message RSDHA189 indicates that there is a problem with a runtime class not implementing a required interface. This typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the data model or the way that classes and interfaces are defined in the ABAP code.
  Cause:
  
  Missing Implementation: The runtime class specified in the error message does not implement the interface that it is supposed to. This could be due to a missing method or an incomplete class definition.
  Incorrect Class/Interface Assignment: The class may have been incorrectly assigned to the interface, or there may have been changes in the class or interface that were not properly reflected in the system.
  Transport Issues: If the class or interface was recently transported from another system, there may have been issues during the transport process that caused the implementation to be incomplete or corrupted.
  Version Mismatch: There may be a version mismatch between the class and the interface, especially if the system has been upgraded or if there are multiple versions of the class/interface in use.
  
  Solution:
  
  Check Class Implementation: Verify that the runtime class indeed implements the required interface. You can do this by checking the class definition in the ABAP Workbench (SE80 or SE24).
  Implement Missing Methods: If the class does not implement all the methods defined in the interface, you will need to add those methods to the class.
  Reassign Class/Interface: If there is a misassignment, correct the assignment of the class to the interface.
  Transport Check: If the issue arose after a transport, check the transport logs for any errors and ensure that all necessary objects were transported correctly.
  System Consistency Check: Run a consistency check in the system to ensure that all objects are correctly defined and implemented.
  Debugging: If the issue persists, consider debugging the code to identify where the error is occurring and gather more context about the runtime environment.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE24 (Class Builder) to investigate the class and interface definitions.
  SAP Notes: Check SAP Notes for any known issues related to this error message. SAP frequently updates their knowledge base with solutions for common problems.
  Documentation: Review the documentation for the specific classes and interfaces you are working with to ensure you understand their intended use and requirements.
  
  If you are unable to resolve the issue with the above steps, consider reaching out to your SAP support team or consulting with an SAP expert who can provide more tailored assistance based on your specific environment and configuration.