How To Fix /IWBEP/SBDSP_UI027 - The mapping direction of attribute &1 must be of type, &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBDSP_UI -

• Message number: 027

• Message text: The mapping direction of attribute &1 must be of type, &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBDSP_UI027 - The mapping direction of attribute &1 must be of type, &2 ?

  The SAP error message /IWBEP/SBDSP_UI027 typically occurs in the context of SAP Gateway and OData services, particularly when there is a mismatch in the expected data types or mapping directions for attributes in your OData model.
  Cause:
  The error message indicates that there is a mismatch between the expected mapping direction of an attribute and the actual type defined in the model. Specifically, it suggests that the attribute &1 is expected to be of type &2, but the actual mapping direction does not align with this expectation. This can happen due to:
  
  Incorrect Data Type Definition: The attribute in the OData service is defined with a different data type than what is expected.
  Mapping Issues: There may be issues in the mapping configuration between the backend data model and the OData service.
  Inconsistent Metadata: The metadata definition for the OData service may not match the underlying data model in the backend system.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Attribute Definition:
  
  Go to the OData service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Verify the data type of the attribute &1 in the entity type definition. Ensure it matches the expected type &2.
  
  
  
  Review Mapping Configuration:
  
  Check the mapping between the backend data model and the OData service. Ensure that the mapping is correctly defined and that the data types align.
  
  
  
  Update Metadata:
  
  If there have been changes to the underlying data model, ensure that the OData service metadata is updated. You can regenerate the metadata by right-clicking on the service in the Service Builder and selecting "Generate".
  
  
  
  Test the Service:
  
  After making the necessary changes, test the OData service using the SAP Gateway Client (transaction code /IWFND/GW_CLIENT) to ensure that the error is resolved.
  
  
  
  Check for Consistency:
  
  Ensure that all related components (like CDS views, if applicable) are consistent with the OData service definitions.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SEGW: Service Builder for OData services.
  /IWFND/GW_CLIENT: Gateway Client for testing OData services.
  
  
  
  Documentation:
  
  Refer to SAP Help documentation for OData services and SAP Gateway for detailed information on data types and mapping configurations.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  
  
  By following these steps, you should be able to identify and resolve the cause of the error message /IWBEP/SBDSP_UI027.