How To Fix 00154 - No valid license installed (no logon possible)

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 154

• Message text: No valid license installed (no logon possible)

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 00154 - No valid license installed (no logon possible) ?

  The SAP error message "00154 No valid license installed (no logon possible)" indicates that the SAP system does not have a valid license installed, which prevents users from logging in. This can occur for several reasons, including:
  Causes:
  
  Expired License: The license key has expired, and the system is no longer authorized for use.
  Missing License: The license file has not been installed or is missing from the system.
  Incorrect License Configuration: The license may be incorrectly configured or not properly applied to the system.
  System Copy or Migration: If the system was copied or migrated, the license may not have been transferred correctly.
  Changes in System ID: If the system ID (SID) has changed, the existing license may no longer be valid.
  
  Solutions:
  
  
  Check License Status:
  
  Use transaction code SLICENSE in the SAP GUI to check the current license status and see if it is valid or expired.
  
  
  
  Install a New License:
  
  If the license is expired or missing, you will need to obtain a new license from SAP. This typically involves contacting your SAP account representative or using the SAP Service Marketplace.
  Once you have the new license, you can install it using transaction code SLICENSE. Follow the prompts to upload the new license file.
  
  
  
  Verify License Configuration:
  
  Ensure that the license is correctly configured for the specific system ID and that it matches the system's configuration.
  
  
  
  System Copy Considerations:
  
  If the system was copied or migrated, ensure that the license is appropriate for the new system ID and that it has been properly installed.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP Support for assistance. They can provide guidance based on your specific situation.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SLICENSE: To manage and check licenses.
  SLICENSE can also be used to view the details of the installed licenses and their validity.
  
  
  
  Documentation: Refer to SAP's official documentation for detailed instructions on license management and installation.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to licensing.
  
  
  Backup: Always ensure you have a backup of your current license file before making any changes.
  
  
  By following these steps, you should be able to resolve the "No valid license installed" error and regain access to your SAP system.