How To Fix UPE1051 - No system temp exists as environment variable

SAP Error Message - Details

• Message type: E = Error

• Message class: UPE1 - Messages: Link to External Applications

• Message number: 051

• Message text: No system temp exists as environment variable

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UPE1051 - No system temp exists as environment variable ?

  The SAP error message UPE1051, which states "No system temp exists as environment variable," typically indicates that the SAP system is unable to find a temporary directory specified by the environment variable for temporary files. This can occur in various scenarios, such as during the execution of certain transactions or when the system is trying to create temporary files.
  Cause:
  The primary cause of this error is that the environment variable for the temporary directory (often TMP or TEMP) is not set or is incorrectly configured in the operating system where the SAP application server is running. This can happen due to:
  
  Missing Environment Variable: The environment variable for temporary files is not defined.
  Incorrect Path: The path specified in the environment variable does not exist or is not accessible.
  Permissions Issue: The user under which the SAP application server is running does not have the necessary permissions to access the specified temporary directory.
  
  Solution:
  To resolve the UPE1051 error, you can follow these steps:
  
  
  Check Environment Variables:
  
  On the server where SAP is installed, check if the TMP and TEMP environment variables are set.
  You can do this by running the command echo %TMP% and echo %TEMP% in the command prompt (Windows) or echo $TMP and echo $TEMP in the terminal (Linux).
  
  
  
  Set or Correct Environment Variables:
  
  If the variables are not set, you can set them to a valid temporary directory. For example:
  
  On Windows:
  
  Right-click on "This PC" or "My Computer" > Properties > Advanced system settings > Environment Variables.
  Add or edit the TMP and TEMP variables to point to a valid directory (e.g., C:\Temp).
  
  
  On Linux:
  
  You can set the variables in the shell configuration file (like .bashrc or .bash_profile) or directly in the terminal:
  export TMP=/tmp
  export TEMP=/tmp
  
  
  
  
  
  
  
  
  Check Directory Permissions:
  
  Ensure that the directory specified in the TMP and TEMP variables exists and that the user running the SAP application server has read and write permissions to that directory.
  
  
  
  Restart SAP Services:
  
  After making changes to the environment variables, restart the SAP application server or the relevant services to ensure that the changes take effect.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error. SAP Notes can provide additional context or solutions based on the version of SAP you are using.
  System Logs: Review the system logs (transaction SM21) for any additional error messages that might provide more context about the issue.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the UPE1051 error and ensure that the SAP system can access the necessary temporary directory for its operations.