How To Fix /IWNGW/CM_HUB026 - Exception when firing the action '&2' on notification '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_HUB -

• Message number: 026

• Message text: Exception when firing the action '&2' on notification '&1'

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWNGW/CM_HUB026 - Exception when firing the action '&2' on notification '&1' ?

  The SAP error message /IWNGW/CM_HUB026 Exception when firing the action '&2' on notification '&1' typically occurs in the context of the SAP Gateway and is related to issues when trying to execute a specific action on a notification within the SAP system. This error can arise due to various reasons, including configuration issues, authorization problems, or data inconsistencies.
  Causes:
  
  Authorization Issues: The user may not have the necessary permissions to perform the action on the specified notification.
  Data Inconsistencies: The notification may be in an inconsistent state, or there may be missing or incorrect data that prevents the action from being executed.
  Configuration Errors: There may be issues with the configuration of the SAP Gateway or the specific service being called.
  Backend Errors: The backend system may be experiencing issues, such as a timeout or a failure in processing the request.
  Network Issues: Problems with network connectivity between the SAP Gateway and the backend system can also lead to this error.
  
  Solutions:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to perform the action on the notification. This can be done by reviewing the user's roles and permissions in the SAP system.
  Validate Notification Data: Check the notification for any inconsistencies or missing data. Ensure that all required fields are filled out correctly.
  Review Configuration: Verify the configuration of the SAP Gateway and the specific service being used. Ensure that all necessary settings are correctly configured.
  Check Backend System: Investigate the backend system for any errors or issues that may be affecting the processing of the request. This may involve checking logs or system performance.
  Network Troubleshooting: If network issues are suspected, check the connectivity between the SAP Gateway and the backend system. This may involve network diagnostics or consulting with your IT department.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message. SAP frequently releases updates and patches that can resolve known issues.
  Transaction Codes: Use transaction codes like SLG1 (Application Log) to check for detailed logs related to the error, which can provide more context on what went wrong.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Debugging: If you have access to the development environment, consider debugging the action to identify the exact point of failure.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis or technical support team for further investigation.