How To Fix TN191 - &1 has an invalid operating system &2

SAP Error Message - Details

• Message type: E = Error

• Message class: TN - Support Package Manager (SPAM) Messages

• Message number: 191

• Message text: &1 has an invalid operating system &2

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message TN191 - &1 has an invalid operating system &2 ?

  The SAP error message TN191 indicates that there is an issue with the operating system configuration for a specific system or instance. The message typically reads: "TN191: &1 has an invalid operating system &2," where &1 represents the system or instance name, and &2 represents the invalid operating system.
  Cause:
  
  Incorrect Configuration: The system may be configured to run on an operating system that is not supported or recognized by SAP.
  Version Mismatch: The version of the operating system may not be compatible with the version of SAP you are trying to run.
  Installation Issues: There may have been issues during the installation or upgrade process that led to incorrect settings.
  Database Compatibility: If the SAP system is trying to connect to a database that is not compatible with the operating system, this error may occur.
  
  Solution:
  
  Check Compatibility: Verify that the operating system you are using is supported by the version of SAP you are running. You can refer to the SAP Product Availability Matrix (PAM) for this information.
  Review Configuration: Check the system configuration settings in the SAP system to ensure that the operating system is correctly specified.
  Update or Patch: If you are running an outdated version of the operating system or SAP, consider updating to a version that is compatible.
  Reinstall or Repair: If the issue persists, you may need to reinstall or repair the SAP installation to ensure that all components are correctly configured.
  Consult Documentation: Review the SAP Notes and documentation related to your specific version and operating system for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific fixes or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  System Logs: Review system logs for additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.