How To Fix /IWBEP/CM_V4_COS124 - Class '&1' for service '&2' version '&3' not found

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_COS -

• Message number: 124

• Message text: Class '&1' for service '&2' version '&3' not found

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 /IWBEP/CM_V4_COS124 - Class '&1' for service '&2' version '&3' not found ?

  The SAP error message /IWBEP/CM_V4_COS124 indicates that a specific class for a service is not found in the system. This error typically occurs in the context of SAP Gateway services, particularly when trying to access an OData service that is not properly configured or is missing.
  Cause:
  
  
  Missing Class: The class specified in the error message (represented by &1) does not exist in the system. This could be due to a number of reasons, such as:
  
  The class was not generated or activated.
  The class was deleted or not transported correctly.
  The service is not properly registered.
  
  
  
  Incorrect Service Version: The service version specified (represented by &3) may not be available or may not correspond to the class that is expected.
  
  
  Configuration Issues: There may be issues with the service configuration in the SAP Gateway, such as incorrect settings in the service registration.
  
  
  Solution:
  
  
  Check Class Existence:
  
  Go to transaction SE80 (Object Navigator) or SE24 (Class Builder) and check if the class exists.
  If it does not exist, you may need to regenerate the service or create the class manually.
  
  
  
  Regenerate the Service:
  
  Use transaction /IWFND/MAINT_SERVICE to check the service registration.
  If the service is not active, activate it. If it is active, you may want to regenerate the service using transaction /IWBEP/REG_SERVICE.
  
  
  
  Check Service Version:
  
  Ensure that the version of the service you are trying to access is correct and that it matches the class that is supposed to handle it.
  
  
  
  Check Service Configuration:
  
  Verify the service configuration in transaction /IWFND/MAINT_SERVICE to ensure that all necessary settings are correct.
  Check if the service is properly mapped to the corresponding class.
  
  
  
  Transport Issues:
  
  If the class was recently transported, ensure that the transport was successful and that all dependencies were included.
  
  
  
  Debugging:
  
  If the issue persists, you may need to debug the service call to identify where the failure occurs.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: Service Maintenance
  /IWBEP/REG_SERVICE: Service Registration
  SE80: Object Navigator
  SE24: Class Builder
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Documentation: Review the SAP Gateway documentation for more information on service registration and class handling.
  
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.