How To Fix /IWBEP/CM_SBMC_MPC005 - Complex type '&1' not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_SBMC_MPC -

• Message number: 005

• Message text: Complex type '&1' not defined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_SBMC_MPC005 - Complex type '&1' not defined ?

  The SAP error message /IWBEP/CM_SBMC_MPC005 Complex type '&1' not defined typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to find a complex type definition that is expected in the OData service metadata.
  Cause:
  
  Missing Complex Type Definition: The complex type referenced in the error message is not defined in the Data Model or the corresponding service.
  Incorrect Service Registration: The OData service may not be properly registered or activated in the SAP Gateway.
  Model Changes: If there have been recent changes to the data model (like adding or modifying complex types) without regenerating the service, it can lead to this error.
  Transport Issues: If the service was transported from one system to another, the complex type may not have been included in the transport.
  
  Solution:
  
  
  Check Complex Type Definition:
  
  Go to the Data Model (e.g., in SEGW transaction) and verify that the complex type &1 is defined correctly.
  If it is missing, you may need to create it or ensure that it is included in the model.
  
  
  
  Regenerate the OData Service:
  
  In the SEGW transaction, right-click on the service and select "Generate Runtime Objects" to regenerate the service. This will ensure that all definitions are up to date.
  
  
  
  Check Service Registration:
  
  Use the transaction /IWFND/MAINT_SERVICE to check if the OData service is properly registered and activated.
  If it is not activated, activate it.
  
  
  
  Check for Transport Issues:
  
  If the service was transported, ensure that all related objects (including the complex type) were included in the transport request.
  You may need to re-transport the missing objects.
  
  
  
  Debugging:
  
  If the issue persists, you can debug the OData service to trace where the error is occurring. This may provide more context on why the complex type is not being recognized.
  
  
  
  Check for Dependencies:
  
  Ensure that any dependencies related to the complex type are also defined and available in the system.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SEGW: Service Builder for OData services.
  /IWFND/MAINT_SERVICE: Manage OData services.
  SE80: Object Navigator for checking the data model and related objects.
  
  
  
  Documentation: Refer to SAP Help documentation for OData services and Gateway for more detailed information on complex types and service definitions.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues related to this error message.
  
  
  By following these steps, you should be able to identify and resolve the issue related to the complex type not being defined in your SAP OData service.