How To Fix /IWBEP/SBOD421 - Property Path '&1&2&3' is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 421

• Message text: Property Path '&1&2&3' is not unique

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBOD421 - Property Path '&1&2&3' is not unique ?

  The SAP error message /IWBEP/SBOD421 Property Path '&1&2&3' is not unique typically occurs in the context of SAP Gateway and OData services. This error indicates that there is a conflict in the property path specified in your OData service definition, meaning that the system has found multiple properties that match the specified path, leading to ambiguity.
  Cause:
  
  Duplicate Property Names: The most common cause is that there are multiple properties with the same name in the data model or entity type, which leads to confusion when the system tries to resolve the property path.
  Incorrect Navigation Properties: If you are using navigation properties, there might be multiple paths that lead to the same entity, causing the system to be unable to determine which one to use.
  Model Definition Issues: There may be issues in the way the OData model is defined, such as incorrect associations or compositions.
  
  Solution:
  
  Check Property Names: Review the entity types and ensure that all property names are unique within the same entity type. If you have properties with the same name, consider renaming them to avoid conflicts.
  Review Navigation Properties: If you are using navigation properties, ensure that they are correctly defined and that there are no ambiguous paths. You may need to adjust the associations or the way you are navigating through the entities.
  Update the OData Model: If you have made changes to the underlying data model, ensure that the OData service is updated accordingly. You may need to regenerate the service or refresh the metadata.
  Check Service Implementation: If you have custom implementations for the OData service, review the code to ensure that it correctly handles the property paths and does not introduce ambiguity.
  Use Unique Aliases: If you are using aliases in your queries, ensure that they are unique and do not conflict with existing property names.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like /IWFND/MAINT_SERVICE to manage your OData services and check their definitions.
  Debugging: Use the SAP Gateway Client (transaction /IWFND/GW_CLIENT) to test your OData service and see the exact request and response, which can help in identifying the issue.
  Documentation: Refer to the SAP Gateway documentation for best practices on defining OData services and handling property paths.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly without ambiguity in property paths.