How To Fix ICM042 - Communication error with ICM; check the state (smicm emergency mode)

SAP Error Message - Details

• Message type: E = Error

• Message class: ICM - Messages for ICM Monitor

• Message number: 042

• Message text: Communication error with ICM; check the state (smicm emergency mode)

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 ICM042 - Communication error with ICM; check the state (smicm emergency mode) ?

  The SAP error message ICM042 indicates a communication error with the Internet Communication Manager (ICM). This error typically arises when the ICM is unable to establish a connection or communicate properly with the application server or other components. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Network Issues: Problems with the network configuration, such as firewalls, routing issues, or DNS problems, can prevent communication.
  ICM Configuration: Incorrect settings in the ICM configuration can lead to communication failures.
  Resource Limitations: Insufficient system resources (CPU, memory) can cause the ICM to become unresponsive.
  Service Unavailability: The application server or services that the ICM is trying to connect to may be down or not running.
  SSL/TLS Issues: If SSL/TLS is configured, issues with certificates or encryption settings can lead to communication errors.
  Port Conflicts: The port that the ICM is trying to use may be occupied by another service.
  
  Solutions:
  
  Check ICM Status: Use transaction code SMICM to check the status of the ICM. If it is in emergency mode, you may need to restart it.
  Review Logs: Check the ICM logs for more detailed error messages. You can find these logs in the dev_icm file or through transaction SMICM under the "Trace" menu.
  Network Configuration: Verify network settings, including firewalls and routing. Ensure that the necessary ports are open and accessible.
  Restart ICM: If the ICM is unresponsive, you may need to restart it. This can be done through transaction SMICM or by restarting the SAP instance.
  Check Resource Usage: Monitor system resources to ensure that the server has enough CPU and memory available. If resources are low, consider optimizing or upgrading the server.
  SSL Configuration: If using SSL, ensure that the certificates are valid and correctly configured. Check the SSL settings in the ICM configuration.
  Port Configuration: Ensure that the ports configured for the ICM are not being used by other applications. You can check this using tools like netstat.
  
  Related Information:
  
  Transaction Codes:
  
  SMICM: Monitor and manage the ICM.
  SM21: Check system logs for any related errors.
  ST22: Check for dumps that may provide additional context.
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to ICM communication errors.
  Documentation: Review the official SAP documentation for ICM configuration and troubleshooting.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.