How To Fix PU805 - Error when calling the operating system

SAP Error Message - Details

• Message type: E = Error

• Message class: PU - Upgrade and Transport Log Messages

• Message number: 805

• Message text: Error when calling the operating system

What causes this issue?

An operating system command was called from an ABAP program. This
command could not be executed.

System Response

The operating system reported the error to the calling program.

How to fix this error?

If you are unable to solve the problem yourself, contact your SAP
system administrator.
Possible causes of the problem:
The central transport directory <LS>/usr/sap/trans</> has not been set
up on the application server you are using.
One of the following programs is missing from subdirectory <LS>/bin</>
in the central transport directory: T_EXP, T_WRITELOG, tp.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PU805 - Error when calling the operating system ?

  The SAP error message PU805, which indicates an error when calling the operating system, typically arises in the context of background processing or when executing external commands from within SAP. This error can occur for various reasons, and understanding the cause is crucial for finding an appropriate solution.
  Possible Causes of PU805 Error
  
  
  Operating System Issues: The operating system may not be responding correctly, or there may be issues with system resources (e.g., memory, CPU).
  
  
  Permission Issues: The user under which the SAP system is running may not have the necessary permissions to execute the command or access the required files.
  
  
  Path Issues: The command or executable being called may not be found in the specified path, or the path may not be correctly configured in the SAP system.
  
  
  Configuration Errors: There may be misconfigurations in the SAP system settings related to external commands or background jobs.
  
  
  Network Issues: If the command involves network resources, there may be connectivity issues.
  
  
  Command Syntax Errors: The command being executed may have syntax errors or may not be valid.
  
  
  Solutions to PU805 Error
  
  
  Check System Resources: Ensure that the operating system has sufficient resources (CPU, memory, disk space) available.
  
  
  Verify Permissions: Check the permissions of the user account under which the SAP system is running. Ensure it has the necessary rights to execute the command.
  
  
  Validate Command Path: Ensure that the command or executable being called is correctly specified and exists in the expected directory. You can test this by running the command directly in the operating system's command line.
  
  
  Review Configuration Settings: Check the SAP configuration settings related to external commands and background jobs. Ensure that they are set up correctly.
  
  
  Check Network Connectivity: If the command involves network resources, verify that the network is functioning correctly and that the SAP system can access the required resources.
  
  
  Examine Command Syntax: Review the command being executed for any syntax errors or invalid parameters.
  
  
  Check SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  Consult Logs: Review the SAP application logs and operating system logs for more detailed error messages that can provide additional context for the issue.
  
  
  Related Information
  
  SAP Documentation: Refer to the official SAP documentation for more details on background processing and external commands.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it is impacting critical business processes.
  
  By systematically checking these areas, you should be able to identify the root cause of the PU805 error and implement an appropriate solution.