How To Fix /IWFND/CM_CNP020 - Formatting GSDO type '&1' to WS interface has been completed

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_CNP -

• Message number: 020

• Message text: Formatting GSDO type '&1' to WS interface has been completed

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 /IWFND/CM_CNP020 - Formatting GSDO type '&1' to WS interface has been completed ?

  The SAP error message /IWFND/CM_CNP020 Formatting GSDO type '&1' to WS interface has been completed typically relates to issues encountered during the formatting of a Generic Service Data Object (GSDO) for a web service interface in the SAP Gateway framework. This error can occur in various scenarios, particularly when dealing with OData services.
  Cause:
  
  Data Type Issues: The error may arise if there are inconsistencies or unsupported data types in the GSDO that cannot be formatted correctly for the web service interface.
  Configuration Problems: Incorrect configuration of the OData service or the underlying data model can lead to this error.
  Mapping Errors: If there are issues in the mapping between the GSDO and the web service interface, it can result in this error message.
  Version Mismatch: There may be a mismatch between the versions of the SAP Gateway and the backend system, leading to compatibility issues.
  
  Solution:
  
  Check Data Types: Review the GSDO definition and ensure that all data types used are supported by the OData service. Make necessary adjustments to the data types if required.
  Review Configuration: Verify the configuration settings for the OData service in the SAP Gateway. Ensure that the service is properly registered and activated.
  Debugging: Use transaction /IWFND/ERROR_LOG to check for additional error messages that may provide more context. Debugging the OData service can also help identify where the formatting is failing.
  Update Service: If there are changes in the backend data model, ensure that the OData service is updated accordingly. You may need to regenerate the service or refresh the metadata.
  Check for Notes: Look for SAP Notes related to this error message in the SAP Support Portal. There may be specific patches or updates that address known issues.
  Consult Documentation: Review the SAP Gateway documentation for any specific guidelines or best practices related to GSDO and OData service formatting.
  
  Related Information:
  
  Transaction Codes: Use /IWFND/MAINT_SERVICE to manage OData services and /IWFND/ERROR_LOG to view error logs.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.