How To Fix 15235 - No connection to the message server; activation not currently possible

SAP Error Message - Details

• Message type: E = Error

• Message class: 15 - Update message

• Message number: 235

• Message text: No connection to the message server; activation not currently possible

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 15235 - No connection to the message server; activation not currently possible ?

  The SAP error message "15235 No connection to the message server; activation not currently possible" typically indicates that the SAP system is unable to connect to the message server, which is crucial for various operations, including user logins and system communications. Here are the potential causes, solutions, and related information for this error:
  Causes:
  
  Network Issues: There may be network connectivity problems between the application server and the message server.
  Message Server Down: The message server itself may be down or not running.
  Configuration Issues: Incorrect configuration settings in the SAP system, such as the instance profile or the SAP GUI settings.
  Firewall Restrictions: Firewalls or security settings may be blocking the necessary ports for communication.
  Load Balancer Issues: If a load balancer is used, it may not be properly configured to route traffic to the message server.
  SAP Kernel Issues: There may be issues with the SAP kernel or the version being used.
  
  Solutions:
  
  
  Check Message Server Status:
  
  Ensure that the message server is running. You can check this using the SAP Management Console (SAP MMC) or by logging into the server directly.
  
  
  
  Verify Network Connectivity:
  
  Test the network connection between the application server and the message server. Use tools like ping or telnet to check connectivity on the required ports (default port for message server is 3600).
  
  
  
  Review Configuration Settings:
  
  Check the instance profile settings in the SAP system. Ensure that the parameters related to the message server (like ms/port, ms/host, etc.) are correctly configured.
  Verify the SAP GUI settings to ensure they point to the correct message server.
  
  
  
  Firewall and Security Settings:
  
  Review firewall settings to ensure that the necessary ports are open for communication between the application server and the message server.
  
  
  
  Load Balancer Configuration:
  
  If using a load balancer, ensure that it is correctly configured to route requests to the message server.
  
  
  
  Check SAP Kernel:
  
  Ensure that the SAP kernel is up to date and compatible with the version of SAP you are running. If necessary, apply patches or updates.
  
  
  
  Restart Services:
  
  If the message server is down or unresponsive, consider restarting the message server and related services.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. You can search the SAP Support Portal for relevant notes.
  Logs: Review the system logs (transaction SM21) and developer traces (transaction ST22) for any additional error messages that may provide more context.
  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 contact SAP support for further assistance.