How To Fix /IWBEP/SBOD112 - Entity Type '&1&2&3' defines more than one etag property

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 112

• Message text: Entity Type '&1&2&3' defines more than one etag property

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBOD112 - Entity Type '&1&2&3' defines more than one etag property ?

  The SAP error message /IWBEP/SBOD112 indicates that there is an issue with the definition of an entity type in your OData service. Specifically, it means that the entity type defined in your service has more than one property marked as an ETag. ETags are used for concurrency control in OData services, allowing clients to manage updates to resources effectively.
  Cause:
  The error occurs when:
  
  An entity type in your OData model has multiple properties defined with the @odata.etag annotation.
  The OData service expects only one property to be designated as the ETag for each entity type.
  
  Solution:
  To resolve this error, you need to ensure that only one property in the entity type is marked as an ETag. Here are the steps to do this:
  
  
  Identify the Entity Type: Check the entity type mentioned in the error message (replace &1&2&3 with the actual entity type name).
  
  
  Review the Annotations: Look at the definition of the entity type in your OData model. You can do this in the relevant ABAP class or in the service definition.
  
  
  Modify the ETag Annotations:
  
  If you find multiple properties annotated with @odata.etag, decide which property should be the ETag.
  Remove the @odata.etag annotation from all but one property.
  
  
  
  Activate the Changes: After making the necessary changes, activate the OData service and regenerate the service metadata.
  
  
  Test the Service: After making the changes, test the OData service to ensure that the error is resolved and that the service behaves as expected.
  
  
  Related Information:
  
  OData and ETags: ETags are used in OData to manage concurrency. They help clients to determine if the resource they are working with has changed since they last retrieved it.
  SAP Gateway: If you are using SAP Gateway, you can check the service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Documentation: Refer to the SAP Help Portal for more information on OData services and entity type definitions.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly.