How To Fix /IWBEP/CM_MGW_RT197 - Unknown exception during conversion

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 197

• Message text: Unknown exception during conversion

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_MGW_RT197 - Unknown exception during conversion ?

  The SAP error message /IWBEP/CM_MGW_RT197 Unknown exception during conversion typically occurs in the context of SAP Gateway and OData services. This error indicates that there was an unexpected issue during the data conversion process, which can happen for various reasons. Here are some common causes, potential solutions, and related information:
  Causes:
  
  Data Type Mismatch: The data being processed may not match the expected data types defined in the OData service.
  Null or Invalid Values: The presence of null or invalid values in the data being converted can lead to this error.
  Model Issues: There may be issues with the data model or the way the OData service is defined.
  Service Implementation Errors: Errors in the implementation of the service methods (e.g., GET, POST) can lead to conversion issues.
  Backend System Errors: Issues in the backend system (like ABAP programs or database inconsistencies) can also trigger this error.
  
  Solutions:
  
  Check Data Types: Ensure that the data types in the OData service match the data being sent from the frontend or the backend.
  Validate Input Data: Before sending data to the OData service, validate it to ensure there are no null or invalid values.
  Review Service Implementation: Check the implementation of the OData service methods for any logical errors or exceptions that might not be handled properly.
  Debugging: Use debugging tools in SAP Gateway to trace the execution and identify where the conversion is failing.
  Check Model Definitions: Review the data model definitions in the service to ensure they are correctly defined and aligned with the backend data structures.
  Error Handling: Implement proper error handling in your service methods to catch exceptions and provide meaningful error messages.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like /IWFND/MAINT_SERVICE to manage OData services and /IWBEP/REG_SERVICE to register services.
  SAP Notes: Check SAP Notes for any known issues related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Logs and Traces: Review the application logs (transaction SLG1) and the Gateway error logs (transaction /IWFND/ERROR_LOG) for more detailed error messages that can provide additional context.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they found effective.
  
  By following these steps, you should be able to diagnose and resolve the /IWBEP/CM_MGW_RT197 Unknown exception during conversion error in your SAP environment.