How To Fix RT455 - CCMSPING communication error: System &1 message server not accessible

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 455

• Message text: CCMSPING communication error: System &1 message server not accessible

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT455 - CCMSPING communication error: System &1 message server not accessible ?

  The SAP error message RT455 "CCMSPING communication error: System &1 message server not accessible" typically indicates that there is a communication issue between the SAP system and the message server of the specified system. This can occur for various reasons, and understanding the cause is essential for troubleshooting and resolving the issue.
  Causes:
  
  
  Network Issues: There may be network connectivity problems between the SAP system and the message server. This could be due to firewall settings, routing issues, or network outages.
  
  
  Message Server Down: The message server of the target SAP system may be down or not running. This can happen if the system is undergoing maintenance or if there are issues with the server itself.
  
  
  Incorrect Configuration: The configuration settings in the SAP system (such as the instance profile or the SAP GUI settings) may be incorrect, leading to an inability to connect to the message server.
  
  
  DNS Resolution Issues: If the hostname of the message server cannot be resolved to an IP address, this can lead to communication errors.
  
  
  SAP Router Issues: If you are using an SAP router, there may be issues with the router configuration or connectivity.
  
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to check if the message server is reachable from the SAP system.
  Ensure that there are no firewall rules blocking the communication.
  
  
  
  Verify Message Server Status:
  
  Check if the message server of the target system is up and running. You can do this by logging into the target system and checking the status of the message server.
  
  
  
  Review Configuration Settings:
  
  Ensure that the configuration settings in the SAP system are correct. This includes checking the instance profile and any relevant parameters in the SAP GUI.
  
  
  
  Check DNS Resolution:
  
  Verify that the hostname of the message server can be resolved correctly. You can use the nslookup command to check DNS resolution.
  
  
  
  SAP Router Configuration:
  
  If you are using an SAP router, ensure that the router is configured correctly and that it is operational.
  
  
  
  Check Logs:
  
  Review the system logs (such as the developer trace files) for any additional error messages that may provide more context about the issue.
  
  
  
  Restart Services:
  
  If the message server is down, restarting the server or the relevant services may resolve the issue.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to CCMSPING and communication errors for any specific patches or updates that may address known issues.
  SAP Community: The SAP Community forums can be a valuable resource for finding similar issues and solutions shared by other users.
  Documentation: Refer to the official SAP documentation for detailed information on configuring and troubleshooting communication between SAP systems.
  
  By following these steps, you should be able to identify and resolve the communication error related to the message server. If the issue persists, consider reaching out to SAP support for further assistance.