How To Fix /IWNGW/CM_HUB024 - Error while fetching notification metadata from provider

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_HUB -

• Message number: 024

• Message text: Error while fetching notification metadata from provider

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 /IWNGW/CM_HUB024 - Error while fetching notification metadata from provider ?

  The SAP error message /IWNGW/CM_HUB024 indicates that there is an issue while fetching notification metadata from the provider in the context of the SAP Fiori or SAP Gateway environment. This error typically arises in scenarios where the system is trying to retrieve data related to notifications, such as in the case of SAP Fiori applications that rely on notifications for user interactions.
  Possible Causes:
  
  Network Issues: There may be connectivity problems between the SAP Gateway and the backend system.
  Authorization Issues: The user may not have the necessary authorizations to access the notification data.
  Configuration Issues: There may be misconfigurations in the SAP Gateway or the backend system that prevent proper communication.
  Service Activation: The required OData services may not be activated in the SAP Gateway.
  Backend System Issues: The backend system may be down or experiencing issues that prevent it from providing the required data.
  Data Model Changes: Changes in the data model or structure of notifications may lead to incompatibility with the existing configurations.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the SAP Gateway and the backend system. You can use tools like ping or telnet to test connectivity.
  Verify Authorizations: Check the user roles and authorizations to ensure that the user has the necessary permissions to access the notification data.
  Review Configuration: Go through the configuration settings in both the SAP Gateway and the backend system to ensure they are set up correctly.
  Activate OData Services: Use transaction code /IWFND/MAINT_SERVICE to check if the required OData services are activated. If not, activate them.
  Check Backend System Status: Ensure that the backend system is up and running without any issues. You can check system logs for any errors.
  Review Data Model Changes: If there have been recent changes to the data model, ensure that the OData service is updated accordingly.
  
  Related Information:
  
  Transaction Codes: 
  
  /IWFND/MAINT_SERVICE: To manage OData services.
  /IWFND/GW_CLIENT: To test OData services and check responses.
  
  
  Logs and Traces: Check the SAP Gateway logs (transaction /IWFND/ERROR_LOG) for more detailed error messages that can provide additional context.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches and updates.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.