How To Fix /IWBEP/SBDSP_DM013 - Key property &1 must have an output mapping

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBDSP_DM -

• Message number: 013

• Message text: Key property &1 must have an output mapping

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBDSP_DM013 - Key property &1 must have an output mapping ?

  The SAP error message /IWBEP/SBDSP_DM013 indicates that a key property in your OData service does not have an output mapping defined. This typically occurs when you are working with the SAP Gateway and trying to expose a data model as an OData service.
  Cause:
  The error is caused by the absence of an output mapping for a key property in the data model. In OData services, key properties are essential for uniquely identifying entities. If the system cannot find a mapping for these properties, it raises this error.
  Solution:
  To resolve this error, you need to ensure that all key properties in your data model have corresponding output mappings. Here are the steps to do this:
  
  
  Open the Data Model: Go to the relevant data model in the SAP Gateway Service Builder (transaction code SEGW).
  
  
  Check Key Properties: Identify the entity type that is causing the issue. Look for the key properties defined in that entity.
  
  
  Define Output Mapping:
  
  Right-click on the entity type and select "Properties".
  Ensure that each key property has an output mapping defined. If not, you need to create one.
  You can do this by selecting the key property and then defining the mapping to the corresponding field in the data source.
  
  
  
  Regenerate the Service: After making the necessary changes, regenerate the service by right-clicking on the service and selecting "Generate".
  
  
  Test the Service: Once the service is regenerated, test it to ensure that the error is resolved.
  
  
  Related Information:
  
  OData Services: OData (Open Data Protocol) is a standard protocol for building and consuming RESTful APIs. In SAP, OData services are often used to expose business data.
  SAP Gateway: The SAP Gateway is a technology that allows you to connect devices, environments, and platforms to SAP systems.
  Service Builder (SEGW): This is the transaction code used to create and manage OData services in SAP.
  
  Additional Tips:
  
  Always ensure that your data model is correctly defined before generating the OData service.
  Check for any other errors or warnings in the service builder that might indicate issues with other properties or mappings.
  If you are unsure about the mappings, refer to the documentation or consult with a colleague who has experience with SAP OData services.
  
  By following these steps, you should be able to resolve the /IWBEP/SBDSP_DM013 error and ensure that your OData service functions correctly.