How To Fix /IWBEP/CM_V4_MED349 - No specific entity type set for operation advertising with complex type

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 349

• Message text: No specific entity type set for operation advertising with complex type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED349 - No specific entity type set for operation advertising with complex type ?

  The SAP error message /IWBEP/CM_V4_MED349 indicates that there is an issue with the OData service configuration, specifically related to the handling of complex types in the service. This error typically arises when the OData service is trying to perform an operation (like a read, create, or update) on a complex type, but it cannot determine the specific entity type to use for that operation.
  Cause:
  
  Missing Entity Type Definition: The OData service may not have a defined entity type for the complex type being referenced in the operation.
  Incorrect Metadata: The metadata of the OData service might not be correctly defined or might be missing the necessary information about the complex types.
  Service Implementation Issues: There could be issues in the implementation of the service, such as incorrect handling of complex types in the service logic.
  Client Request Issues: The request sent to the OData service might not be correctly formatted or might be missing required parameters.
  
  Solution:
  
  
  Check Entity Type Definitions: Ensure that all complex types used in the OData service are properly defined in the service's metadata. You can do this by checking the service's metadata document (usually accessible via a URL like http://<service-url>/$metadata).
  
  
  Update Service Implementation: If you are developing the OData service, review the implementation to ensure that it correctly handles complex types. Make sure that the service methods are properly defined to handle the operations on complex types.
  
  
  Review Client Requests: If the error is occurring due to a client request, review the request payload to ensure that it is correctly formatted and includes all necessary information. Make sure that the request specifies the correct entity type.
  
  
  Regenerate Service: If you have made changes to the data model or the service implementation, consider regenerating the OData service to ensure that the metadata is up to date.
  
  
  Check for Updates: Ensure that you are using the latest version of the SAP Gateway and related components, as updates may contain fixes for known issues.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message or related keywords in the SAP Support Portal.
  OData Documentation: Review the official SAP OData documentation for guidance on defining and using complex types in OData services.
  Community Forums: Consider checking SAP Community forums or other developer forums for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.