How To Fix /IWNGW/CM_HUB109 - Failed to mark the notifications as read

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_HUB -

• Message number: 109

• Message text: Failed to mark the notifications as read

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_HUB109 - Failed to mark the notifications as read ?

  The SAP error message /IWNGW/CM_HUB109 Failed to mark the notifications as read typically occurs in the context of the SAP Fiori or SAP Gateway environment, particularly when dealing with notifications in the SAP system. This error can arise due to various reasons, and here are some common causes, potential solutions, and related information:
  Causes:
  
  Authorization Issues: The user may not have the necessary authorizations to mark notifications as read.
  Network Issues: There may be connectivity problems between the SAP Fiori front-end and the back-end system.
  Service Configuration: The OData service responsible for handling notifications may not be properly configured or activated.
  Data Consistency: There may be inconsistencies in the notification data or issues with the underlying database.
  System Performance: High load on the system or performance issues may prevent the operation from completing successfully.
  
  Solutions:
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary roles and authorizations to perform the action of marking notifications as read. You can check this in transaction PFCG by reviewing the assigned roles.
  
  
  
  Verify OData Service:
  
  Check if the OData service used for notifications is active. You can do this in transaction /IWFND/MAINT_SERVICE. Ensure that the service is registered and active.
  
  
  
  Check System Logs:
  
  Review the system logs for any additional error messages or warnings that could provide more context. Use transaction SLG1 to check application logs.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues between the front-end and back-end systems. You can test connectivity using tools like ping or telnet.
  
  
  
  Database Consistency:
  
  If there are data consistency issues, you may need to run consistency checks or consult with your database administrator.
  
  
  
  Performance Monitoring:
  
  Monitor system performance to ensure that it is not overloaded. You can use transaction ST03N to analyze performance metrics.
  
  
  
  Update SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error. Sometimes, applying a patch or update can resolve known issues.
  
  
  
  Related Information:
  
  SAP Fiori Launchpad: If you are using the Fiori Launchpad, ensure that the launchpad configuration is correct and that the notifications are set up properly.
  SAP Gateway: Familiarize yourself with the SAP Gateway architecture, as issues may arise from the interaction between the front-end and back-end systems.
  SAP Community: Consider searching or posting in the SAP Community forums for additional insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.