How To Fix PU811 - No system name for system log file

SAP Error Message - Details

• Message type: E = Error

• Message class: PU - Upgrade and Transport Log Messages

• Message number: 811

• Message text: No system name for system log file

What causes this issue?

A function module (from function group STRF) was called without a value
for parameter SYSNAME.

System Response

The program could not be executed.

How to fix this error?

Contact your SAP system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PU811 - No system name for system log file ?

  The SAP error message PU811 "No system name for system log file" typically indicates that the system is unable to determine the system name for the log file that it is trying to access. This can occur for various reasons, often related to configuration issues or missing parameters.
  Causes:
  
  Missing Configuration: The system name may not be properly configured in the instance profile or in the system settings.
  Profile Parameters: The profile parameters that define the system name might be missing or incorrectly set.
  File Permissions: There may be issues with file permissions that prevent the system from accessing the log file.
  Environment Variables: The environment variables that define the system name may not be set correctly.
  System Initialization Issues: The system may not have been initialized properly, leading to missing or incomplete configuration.
  
  Solutions:
  
  
  Check Instance Profile:
  
  Go to the instance profile of your SAP system and ensure that the system name is correctly defined. You can check this in transaction RZ10.
  Look for the parameter rdisp/mshost and ensure it is set correctly.
  
  
  
  Review Profile Parameters:
  
  Ensure that the necessary profile parameters are set in the instance profile. You may need to add or correct parameters related to the system name.
  
  
  
  Check Log File Permissions:
  
  Verify that the user under which the SAP system is running has the necessary permissions to access the log files. Check the file system permissions for the log directory.
  
  
  
  Set Environment Variables:
  
  Ensure that any required environment variables are set correctly in the operating system. This may include variables that define the system name.
  
  
  
  Restart the System:
  
  After making changes to the configuration or profile parameters, restart the SAP system to ensure that the changes take effect.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions to known issues.
  
  
  
  Consult SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like RZ10 (to manage profiles) and SM21 (to view system logs) to troubleshoot further.
  SAP Documentation: Refer to the official SAP documentation for detailed information on system configuration and log file management.
  System Logs: Check the system logs for any additional error messages that may provide more context about the issue.
  
  By following these steps, you should be able to identify and resolve the cause of the PU811 error in your SAP system.