How To Fix /IWBEP/CM_OCI026 - Service has navigation property in between property which is unsupported

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_OCI -

• Message number: 026

• Message text: Service has navigation property in between property which is unsupported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_OCI026 - Service has navigation property in between property which is unsupported ?

  The SAP error message /IWBEP/CM_OCI026 indicates that there is an issue with the navigation properties in your OData service. Specifically, it suggests that there is a navigation property that is not supported because it is placed between other properties in the entity definition. This can occur when the OData service is trying to expose a data model that does not conform to the expected structure for navigation properties.
  Cause:
  
  Incorrect Entity Definition: The entity definition in the data model may have navigation properties that are not correctly defined or are placed in an unsupported position.
  OData Version Compatibility: The version of OData being used may not support certain configurations of navigation properties.
  Model Configuration: The way the model is configured in the backend (e.g., ABAP) may not align with the expectations of the OData service.
  
  Solution:
  
  
  Review Entity Definition: Check the entity definition in your OData service. Ensure that navigation properties are defined correctly and are not placed between other properties. Navigation properties should typically be at the end of the property list.
  
  
  Adjust Model Configuration: If you are using an ABAP backend, review the data model and ensure that the navigation properties are correctly defined in the ABAP Dictionary (SE11) and that they follow the expected structure.
  
  
  Update OData Service: If you have made changes to the entity definition or model configuration, regenerate the OData service using transaction /IWFND/MAINT_SERVICE to ensure that the changes are reflected in the service.
  
  
  Check OData Version: Ensure that you are using a compatible version of OData that supports the features you are trying to implement. If necessary, update your service to a newer version of OData.
  
  
  Debugging: Use transaction /IWFND/ERROR_LOG to check for additional error messages that may provide more context about the issue.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on best practices for defining navigation properties in OData services.
  OData Documentation: Review the official OData documentation for guidelines on how to properly define entities and navigation properties.
  Community Forums: Consider searching or posting on SAP Community forums for additional insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.