How To Fix /IWBEP/SBDSP_DM054 - Mandatory data source parameter &1 is not mapped

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBDSP_DM -

• Message number: 054

• Message text: Mandatory data source parameter &1 is not mapped

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBDSP_DM054 - Mandatory data source parameter &1 is not mapped ?

  The SAP error message /IWBEP/SBDSP_DM054 Mandatory data source parameter &1 is not mapped typically occurs in the context of SAP Gateway and OData services. This error indicates that a mandatory data source parameter required for the operation is not properly mapped in the service definition or implementation.
  Cause:
  
  Missing Mapping: The error usually arises when a required parameter in the OData service is not mapped to a corresponding field in the data source (e.g., a database table or a structure).
  Incorrect Service Definition: The service definition may not correctly define the parameters that are expected by the backend logic.
  Changes in Data Model: If there have been changes in the underlying data model (like adding or removing fields), the service may not reflect these changes.
  Implementation Issues: If you are using a custom implementation for the OData service, there may be issues in the code that prevent the parameter from being recognized.
  
  Solution:
  
  
  Check Service Definition:
  
  Go to the SAP Gateway Service Builder (transaction code SEGW).
  Open the relevant service and check the entity types and their properties.
  Ensure that all mandatory parameters are defined and mapped correctly.
  
  
  
  Map Parameters:
  
  In the service definition, ensure that the mandatory parameters are mapped to the correct fields in the data source.
  If a parameter is missing, add it to the entity type and map it to the appropriate data source field.
  
  
  
  Regenerate the Service:
  
  After making changes to the service definition, regenerate the service by right-clicking on the service and selecting "Generate".
  This will update the service implementation with the new mappings.
  
  
  
  Check Implementation Logic:
  
  If you have custom logic in the service implementation (e.g., in the DPC or MPC classes), ensure that the logic correctly handles the mandatory parameters.
  Debug the implementation to see if the parameters are being passed correctly.
  
  
  
  Test the Service:
  
  After making the necessary changes, test the OData service using the SAP Gateway Client (transaction code /IWFND/GW_CLIENT) or any other OData client to ensure that the error is resolved.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Documentation: Review the SAP Gateway documentation for best practices on defining and implementing OData services.
  Community Forums: Consider searching or posting on SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error message and ensure that your OData service functions correctly.