How To Fix /IWNGW/CM_HUB012 - Unexpected exception when creating UUID

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_HUB -

• Message number: 012

• Message text: Unexpected exception when creating UUID

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_HUB012 - Unexpected exception when creating UUID ?

  The SAP error message /IWNGW/CM_HUB012 Unexpected exception when creating UUID typically indicates an issue related to the generation of a UUID (Universally Unique Identifier) in the context of SAP Gateway services. This error can occur due to various reasons, including system configuration issues, database inconsistencies, or problems with the underlying code.
  Possible Causes:
  
  Database Issues: There may be inconsistencies or corruption in the database that prevent the UUID from being generated.
  System Configuration: Incorrect configuration settings in the SAP Gateway or related components can lead to this error.
  Code Issues: There might be bugs or exceptions in the custom code or standard code that handles UUID generation.
  Resource Limitations: Insufficient system resources (like memory or processing power) can lead to unexpected exceptions.
  Transport Issues: If the system has recently undergone a transport, there may be missing or incorrectly transported objects.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction SLG1) for more detailed error messages that can provide insights into the root cause.
  Database Consistency Check: Run database consistency checks to ensure that there are no issues with the database tables related to UUID generation.
  Configuration Review: Verify the configuration settings for the SAP Gateway and ensure that all necessary components are correctly set up.
  Code Review: If custom code is involved, review it for any potential exceptions or errors that could lead to this issue. Debugging the code may help identify the problem.
  System Resources: Monitor system resources to ensure that there are no bottlenecks. If necessary, allocate more resources to the system.
  Transport Check: If the issue arose after a transport, check if all necessary objects were transported correctly and that there are no missing dependencies.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  
  Related Information:
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any logs and the context in which the error occurs.
  Documentation: Review the official SAP documentation related to UUID generation and SAP Gateway services for any additional insights or troubleshooting steps.
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWNGW/CM_HUB012 error.