How To Fix MSGSERVER090 - Port & was opened for the external binding program

SAP Error Message - Details

• Message type: E = Error

• Message class: MSGSERVER - Messages for Message Server

• Message number: 090

• Message text: Port & was opened for the external binding program

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 MSGSERVER090 - Port & was opened for the external binding program ?

  The SAP error message MSGSERVER090 indicates that a specific port has been opened for an external binding program. This typically occurs in the context of SAP's message server, which is responsible for managing communication between different instances of SAP systems.
  Cause:
  The error can arise due to several reasons, including:
  
  Port Configuration Issues: The specified port may not be correctly configured in the SAP system or may be conflicting with another service.
  Network Issues: There may be network-related problems preventing proper communication through the specified port.
  Firewall Settings: A firewall may be blocking access to the port, preventing external programs from binding to it.
  Multiple Instances: If multiple instances of the SAP system are trying to use the same port, it can lead to conflicts.
  Incorrect Parameters: The parameters set in the instance profile or the message server configuration may be incorrect.
  
  Solution:
  To resolve the MSGSERVER090 error, you can follow these steps:
  
  
  Check Port Configuration:
  
  Verify the port settings in the SAP instance profile. Ensure that the port is correctly defined and not in use by another service.
  You can check the instance profile parameters using transaction RZ10 or by directly accessing the profile files.
  
  
  
  Review Network Settings:
  
  Ensure that the network settings allow communication through the specified port. You can use tools like telnet or nc to test connectivity to the port.
  
  
  
  Firewall Configuration:
  
  Check the firewall settings on the server and ensure that the port is open for inbound and outbound traffic. You may need to consult with your network administrator to adjust firewall rules.
  
  
  
  Check for Conflicts:
  
  Ensure that no other applications or services are using the same port. You can use commands like netstat to check for port usage.
  
  
  
  Restart the Message Server:
  
  Sometimes, simply restarting the message server can resolve temporary issues. Use transaction SMMS to restart the message server.
  
  
  
  Review SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that can resolve the issue.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation for your specific version to ensure that all configurations are set correctly.
  
  
  
  Related Information:
  
  
  SAP Transaction Codes: 
  
  RZ10: To manage instance profiles.
  SMMS: To monitor and manage the message server.
  SM51: To view active application servers.
  
  
  
  SAP Notes: Always check for the latest SAP Notes related to your version of SAP, as they may provide specific fixes or workarounds for known issues.
  
  
  Logs: Review the logs in the SAP system (e.g., dev_ms logs) for more detailed error messages that can provide additional context for troubleshooting.
  
  
  By following these steps, you should be able to identify and resolve the issue related to the MSGSERVER090 error. If the problem persists, consider reaching out to SAP support for further assistance.