How To Fix /IWBEP/CM_V4_MED116 - Duplicate property name '&1' found for derived complex type '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 116

• Message text: Duplicate property name '&1' found for derived complex type '&2'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED116 - Duplicate property name '&1' found for derived complex type '&2' ?

  The SAP error message /IWBEP/CM_V4_MED116 Duplicate property name '&1' found for derived complex type '&2' typically occurs in the context of SAP Gateway and OData services when there is a conflict in the definition of properties within a complex type. This error indicates that there are two or more properties with the same name defined in a derived complex type, which is not allowed.
  Cause:
  
  Duplicate Property Definition: The most common cause of this error is that the derived complex type has properties that are defined with the same name as properties in its base type or other properties within the same type.
  Model Definition Issues: If the OData model is not correctly defined, it can lead to conflicts in property names.
  Changes in Data Model: If there have been recent changes to the data model, such as renaming or adding properties, it may lead to inconsistencies.
  
  Solution:
  
  Check the Complex Type Definition: Review the definition of the complex type mentioned in the error message. Ensure that there are no duplicate property names within the complex type or between the base and derived types.
  Rename Properties: If you find duplicate property names, consider renaming them to ensure that each property has a unique name.
  Regenerate the Service: After making changes to the model, regenerate the OData service to ensure that the changes are reflected in the service metadata.
  Check for Inheritance Issues: If the complex type is derived from another type, ensure that the base type does not have properties with the same name as those in the derived type.
  Clear Cache: Sometimes, caching issues can cause discrepancies. Clear the cache of the OData service and re-test.
  
  Related Information:
  
  SAP Gateway: This error is related to the SAP Gateway framework, which is used to create OData services.
  OData Services: Understanding how OData services work and how to define complex types can help in troubleshooting similar issues.
  SAP Notes and Documentation: Check SAP Notes for any known issues or updates related to this error message. The SAP Help Portal may also provide additional guidance on defining complex types and OData services.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly.