How To Fix /IWBEP/MC_SB_DPC_ADM021 - The specified key parameter &1 is not part of the model

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/MC_SB_DPC_ADM -

• Message number: 021

• Message text: The specified key parameter &1 is not part of the model

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/MC_SB_DPC_ADM021 - The specified key parameter &1 is not part of the model ?

  The SAP error message /IWBEP/MC_SB_DPC_ADM021 indicates that a specified key parameter is not part of the data model in the context of an OData service. This typically occurs when a request is made to an OData service, and the key parameter provided in the request does not match any of the keys defined in the service's data model.
  Cause:
  
  Incorrect Key Parameter: The key parameter specified in the request does not exist in the entity set defined in the OData service.
  Model Changes: The data model may have been changed (e.g., keys added or removed) after the OData service was generated, and the request is still using the old key.
  Typographical Errors: There may be a typo in the key parameter name or value in the request.
  Service Metadata: The OData service metadata may not be up to date, leading to discrepancies between the expected keys and the actual keys.
  
  Solution:
  
  Check the OData Service Metadata: Access the OData service metadata (usually available at the URL http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata) and verify the keys defined for the entity set you are trying to access.
  Correct the Key Parameter: Ensure that the key parameter in your request matches one of the keys defined in the metadata. If there are multiple keys, ensure that all required keys are included in the request.
  Update the Service: If the data model has changed, regenerate the OData service to ensure that it reflects the current model. This can be done using transaction /IWFND/MAINT_SERVICE in SAP.
  Check for Typos: Review the request for any typographical errors in the key parameter name or value.
  Test with a Known Good Request: If possible, test the OData service with a known good request that successfully retrieves data to ensure that the service is functioning correctly.
  
  Related Information:
  
  OData Service Documentation: Review the documentation for the specific OData service you are working with to understand the expected parameters and their formats.
  SAP Notes: Check SAP Notes for any known issues or updates related to the specific OData service or the error message.
  Debugging: If you have access to the backend, consider debugging the OData service to trace the request and identify where the mismatch occurs.
  
  By following these steps, you should be able to resolve the error and successfully interact with the OData service.