How To Fix GENIL_WCF172 - Substituted component class &1 has to be derived from &2

SAP Error Message - Details

• Message type: E = Error

• Message class: GENIL_WCF - Messages for genIL Model Editor

• Message number: 172

• Message text: Substituted component class &1 has to be derived from &2

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message GENIL_WCF172 - Substituted component class &1 has to be derived from &2 ?

  The SAP error message GENIL_WCF172 indicates that there is an issue with the component class in the context of the SAP Generic Interface (GENIL) and the Web Component Framework (WCF). Specifically, the error states that a substituted component class must be derived from a specified base class. This typically occurs in scenarios where the component class hierarchy is not correctly set up.
  Cause:
  
  Incorrect Class Hierarchy: The substituted component class does not inherit from the expected base class. This can happen if the class was manually created or modified without adhering to the required inheritance structure.
  Configuration Issues: There may be a misconfiguration in the component configuration settings, leading to the system expecting a different class structure.
  Transport Issues: If the component class was transported from another system, it might not have been transported correctly, leading to inconsistencies in the class definitions.
  
  Solution:
  
  Check Class Definition: Verify that the substituted component class is correctly defined and that it inherits from the specified base class. You can do this by checking the class definition in the ABAP Workbench (transaction SE80 or SE24).
  Adjust Inheritance: If the class does not inherit from the required base class, you may need to modify the class definition to ensure it does. This may involve creating a new class that correctly inherits from the base class or adjusting the existing class.
  Review Configuration: Check the configuration settings related to the component in the relevant customizing transactions. Ensure that the correct classes are assigned in the configuration.
  Transport Check: If the issue arose after a transport, ensure that all related objects were transported correctly. You may need to re-transport the classes or check for missing dependencies.
  Debugging: If the issue persists, consider debugging the application to trace where the error is being triggered. This can provide insights into the specific conditions leading to the error.
  
  Related Information:
  
  Documentation: Refer to the SAP documentation for GENIL and WCF for more details on class hierarchies and component configurations.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with the SAP Community or forums like SAP Community Network (SCN) for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the issue related to the GENIL_WCF172 error message.