How To Fix SOI_TPSQL020 - No implementing class found for interface &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SOI_TPSQL -

• Message number: 020

• Message text: No implementing class found for interface &1

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SOI_TPSQL020 - No implementing class found for interface &1 ?

  The SAP error message SOI_TPSQL020 indicates that the system is unable to find an implementing class for a specified interface. This typically occurs in the context of SAP's Object-Oriented programming, particularly when dealing with Business Object Processing Framework (BOPF) or similar frameworks where interfaces and their implementations are used.
  Cause:
  
  Missing Implementation: The most common cause is that the implementing class for the specified interface has not been created or is not available in the system.
  Incorrect Configuration: The interface might be incorrectly configured, or the system might be pointing to the wrong interface.
  Transport Issues: If the implementation was recently transported from another system, there may have been issues during the transport process that caused the implementation to not be available.
  Namespace Issues: The class might exist in a different namespace that is not accessible in the current context.
  
  Solution:
  
  Check Implementation: Verify that the implementing class for the specified interface exists in the system. You can do this by using transaction SE80 (Object Navigator) or SE24 (Class Builder) to search for the class.
  Create Implementation: If the class does not exist, you may need to create it. Ensure that it correctly implements all the methods defined in the interface.
  Check Configuration: Review the configuration settings related to the interface and ensure that they are correctly set up.
  Transport Check: If the implementation was recently transported, check the transport logs for any errors. You may need to re-transport the implementation or manually create it in the target system.
  Namespace Verification: Ensure that the class is in the correct namespace and that the system has access to it.
  Debugging: If the issue persists, consider debugging the code to trace where the error is occurring and gather more context about the failure.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to this error message for any specific patches or updates that may address the issue.
  Documentation: Review the documentation for the specific framework or technology you are using (e.g., BOPF, ABAP Objects) to ensure you are following best practices.
  Community Forums: Consider searching or posting in SAP community forums or SAP Community Network (SCN) for additional insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.