How To Fix /IWBEP/SBOD109 - Property name '&1' is not unique within inheritance hierarchy

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 109

• Message text: Property name '&1' is not unique within inheritance hierarchy

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBOD109 - Property name '&1' is not unique within inheritance hierarchy ?

  The SAP error message /IWBEP/SBOD109 Property name '&1' is not unique within inheritance hierarchy typically occurs in the context of SAP Gateway and OData services when there is a conflict in property names within an entity type that inherits from another entity type. This can happen when two or more properties with the same name exist in the inheritance hierarchy, leading to ambiguity.
  Cause:
  
  
  Duplicate Property Names: The error arises when a property with the same name is defined in both a base entity and a derived entity. This can happen if:
  
  The same property is defined in multiple places in the inheritance chain.
  The property is inherited from a base class and also defined in a derived class.
  
  
  
  Model Definition Issues: The issue may stem from how the OData model is defined, particularly if there are inconsistencies in the metadata definitions.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Inheritance Structure:
  
  Review the entity types involved in the inheritance hierarchy. Identify where the property &1 is defined and ensure that it is not duplicated in both the base and derived entities.
  
  
  
  Rename Properties:
  
  If you find that the same property name is used in both the base and derived entities, consider renaming one of the properties to ensure uniqueness.
  
  
  
  Adjust Metadata:
  
  If you are using a service definition or metadata file, ensure that the definitions are correct and do not contain duplicate property names.
  
  
  
  Regenerate the Service:
  
  After making changes to the entity definitions, regenerate the OData service and refresh the metadata to ensure that the changes are reflected.
  
  
  
  Check for Annotations:
  
  Sometimes, annotations can also lead to conflicts. Ensure that any annotations related to the properties are also consistent and do not introduce ambiguity.
  
  
  
  Related Information:
  
  SAP Gateway: This error is often encountered in the context of SAP Gateway services, which expose business data as OData services.
  OData Services: Understanding how OData services work and how entity types are defined can help in troubleshooting similar issues.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or updates related to this error.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly without property name conflicts.