How To Fix /IWBEP/CM_MGW_RT192 - Result caching on hub not allowed for cached request processing

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 192

• Message text: Result caching on hub not allowed for cached request processing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT192 - Result caching on hub not allowed for cached request processing ?

  The SAP error message /IWBEP/CM_MGW_RT192 indicates that result caching on the hub is not allowed for cached request processing in the context of SAP Gateway and OData services. This error typically arises when there is an attempt to use caching mechanisms that are not supported in the current configuration or scenario.
  Cause:
  
  Configuration Issues: The error may occur if the OData service is configured to use caching, but the system settings or the service implementation do not support it.
  Service Implementation: The OData service might be trying to cache results in a way that is not compatible with the current setup, especially if the service is designed to handle dynamic data that should not be cached.
  Hub vs. Backend: In a hub-and-spoke architecture, the hub may not allow caching of results from the backend system, leading to this error when a request is processed.
  
  Solution:
  
  Check Service Configuration: Review the OData service configuration in the SAP Gateway. Ensure that caching settings are correctly configured and that the service is intended to support caching.
  Adjust Caching Settings: If caching is not required for the specific service, consider disabling caching in the service implementation or configuration.
  Review Backend Settings: If the service is intended to work with a backend system, ensure that the backend is configured to allow caching if needed.
  Update Service Implementation: If the service is designed to return dynamic data, ensure that the implementation does not attempt to cache results. You may need to modify the service logic to prevent caching.
  Check SAP Notes: Look for relevant SAP Notes or updates that may address this specific error or provide guidance on caching configurations.
  
  Related Information:
  
  SAP Gateway: Understand how SAP Gateway handles OData services and the implications of caching in a hub-and-spoke architecture.
  OData Caching: Familiarize yourself with the principles of caching in OData services, including when and how to use it effectively.
  Performance Considerations: Evaluate the performance implications of caching in your specific scenario, as improper caching can lead to stale data being served to users.
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance, providing them with detailed information about your system configuration and the specific circumstances under which the error occurs.