How To Fix 14123 - Host name buffer for ICM reset

SAP Error Message - Details

• Message type: E = Error

• Message class: 14 - Task handler messages

• Message number: 123

• Message text: Host name buffer for ICM reset

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 14123 - Host name buffer for ICM reset ?

  The SAP error message "14123 Host name buffer for ICM reset" typically relates to issues with the Internet Communication Manager (ICM) in the SAP system. This error can occur when there are problems with the hostname resolution or configuration of the ICM.
  Cause:
  
  Hostname Resolution Issues: The ICM may be unable to resolve the hostname due to DNS issues or incorrect entries in the hosts file.
  Configuration Errors: Incorrect settings in the ICM configuration can lead to this error. This includes issues in the instance profile or parameters related to the ICM.
  Network Issues: Problems with the network configuration or connectivity can also lead to this error.
  Buffer Overflow: The error may indicate that the buffer allocated for hostname resolution is insufficient or has been corrupted.
  
  Solution:
  
  
  Check Hostname Resolution:
  
  Ensure that the hostname is correctly configured in the DNS or the /etc/hosts file (for UNIX/Linux systems).
  Use commands like ping or nslookup to verify that the hostname can be resolved correctly.
  
  
  
  Review ICM Configuration:
  
  Check the instance profile parameters related to the ICM. Look for parameters like icm/host_name and ensure they are set correctly.
  You can access the instance profile via transaction RZ10 and make necessary adjustments.
  
  
  
  Restart ICM:
  
  Sometimes, simply restarting the ICM can resolve temporary issues. You can do this through transaction SMICM by selecting the "Restart" option.
  
  
  
  Check Network Configuration:
  
  Ensure that there are no firewall rules or network policies blocking the communication required by the ICM.
  Verify that the network settings are correctly configured for the SAP system.
  
  
  
  Increase Buffer Size:
  
  If the issue is related to buffer overflow, consider increasing the buffer size allocated for hostname resolution in the ICM settings.
  
  
  
  Check SAP Notes:
  
  Look for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SMICM: Monitor and manage the ICM.
  RZ10: Change instance profile parameters.
  RZ11: Display and change profile parameters dynamically.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on ICM configuration and troubleshooting.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  If the problem persists after trying the above solutions, it may be necessary to consult with SAP support for further assistance.