How To Fix /IWBEP/CM_MGW_RT102 - Complex type '&1' not found

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 102

• Message text: Complex type '&1' 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.

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/CM_MGW_RT102 - Complex type '&1' not found ?

  The SAP error message /IWBEP/CM_MGW_RT102 Complex type '&1' not found typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to find a complex type that is expected in the OData service definition. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Missing Complex Type Definition: The complex type referenced in the error message is not defined in the Data Model of the OData service.
  Incorrect Service Registration: The OData service may not be properly registered or activated in the SAP Gateway.
  Model Generation Issues: There may be issues with the generation of the service model, which can lead to missing or incorrect definitions.
  Transport Issues: If the service was transported from one system to another, the complex type may not have been included in the transport request.
  
  Solutions:
  
  
  Check Complex Type Definition:
  
  Go to the SAP Gateway Service Builder (transaction code SEGW).
  Open the relevant project and check if the complex type is defined correctly.
  If it is missing, you may need to create it or ensure it is included in the project.
  
  
  
  Regenerate the Service:
  
  In the Service Builder, after ensuring that all definitions are correct, regenerate the service.
  Right-click on the project and select "Generate" to regenerate the runtime artifacts.
  
  
  
  Activate the Service:
  
  Ensure that the OData service is activated in the SAP Gateway. You can do this using transaction code /IWFND/MAINT_SERVICE.
  Check if the service is listed and activated. If not, activate it.
  
  
  
  Check Transport Requests:
  
  If the service was transported, ensure that all necessary objects, including the complex types, were included in the transport request.
  You may need to re-transport the missing objects.
  
  
  
  Check for Naming Issues:
  
  Ensure that there are no typos or naming mismatches in the complex type name being referenced.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the OData service to trace where the error occurs and gather more context about the missing complex type.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to OData services and Gateway issues for any known issues or patches.
  Documentation: Review the SAP Gateway documentation for guidelines on defining and managing complex types.
  Community Forums: Engage with the SAP Community or forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the issue related to the complex type not being found in your SAP OData service.