How To Fix /IWBEP/CM_V4_MED237 - Parameter type '&1' of operation '&2' not found

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 237

• Message text: Parameter type '&1' of operation '&2' not found

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED237 - Parameter type '&1' of operation '&2' not found ?

  The SAP error message /IWBEP/CM_V4_MED237 Parameter type '&1' of operation '&2' not found typically occurs in the context of SAP Gateway and OData services. This error indicates that there is a mismatch or an issue with the parameter types defined in the OData service's metadata.
  Cause:
  
  Missing Parameter Type: The parameter type specified in the operation (e.g., an OData service method) is not defined in the service's metadata.
  Incorrect Metadata Definition: The metadata for the OData service may not be correctly defined, leading to the system being unable to find the specified parameter type.
  Service Activation Issues: The OData service may not be properly activated or may have been changed without proper reactivation.
  Versioning Issues: If there are multiple versions of the service, the wrong version might be referenced.
  
  Solution:
  
  Check Metadata: Verify the metadata of the OData service to ensure that the parameter types are correctly defined. You can do this by accessing the service's metadata URL (e.g., http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata).
  Re-activate the Service: If there have been changes to the service, try reactivating it in the SAP Gateway Service Builder (transaction code SEGW). This can help refresh the metadata and resolve any inconsistencies.
  Check Service Implementation: Ensure that the implementation of the operation in the service is correctly defined and that all parameter types are properly declared.
  Debugging: If the issue persists, consider debugging the service to trace where the error occurs. This can provide insights into what might be going wrong.
  Check for Updates: Ensure that your SAP system is up to date with the latest support packages and notes, as there may be fixes related to OData services.
  
  Related Information:
  
  Transaction Codes: 
  
  SEGW: Service Builder for OData services.
  IWFND/MAINT_SERVICE: To maintain and activate OData services.
  
  
  SAP Notes: Check SAP Notes related to OData services and the specific error message for any known issues or patches.
  Documentation: Refer to the SAP Gateway documentation for guidelines on defining and implementing OData services.
  
  If the problem continues after trying the above solutions, consider reaching out to SAP support for further assistance.