How To Fix MSG_CL_ER159 - Classification system &1 is read only

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_CL_ER - Message Class for Enterprise Registry

• Message number: 159

• Message text: Classification system &1 is read only

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 MSG_CL_ER159 - Classification system &1 is read only ?

  The SAP error message MSG_CL_ER159 indicates that the classification system you are trying to access is in a read-only state. This typically occurs when you attempt to make changes to a classification system that has been set to read-only mode, either due to system settings or specific configurations.
  Causes:
  
  System Configuration: The classification system may have been configured to be read-only by an administrator. This can happen during system upgrades or maintenance.
  Authorization Issues: The user may not have the necessary authorizations to make changes to the classification system.
  Transport Requests: If the classification system is part of a transport request that is currently being processed, it may be locked for changes.
  Data Consistency: The system may be enforcing read-only status to maintain data consistency during certain operations.
  
  Solutions:
  
  Check System Settings: Verify if the classification system is intentionally set to read-only. This can be done by checking the configuration settings in the SAP system.
  User Authorizations: Ensure that the user has the appropriate authorizations to modify the classification system. This may involve checking roles and permissions assigned to the user.
  Unlock the System: If the classification system is locked due to a transport request, wait for the transport to complete or consult with your Basis team to unlock it.
  Consult Documentation: Review SAP documentation or notes related to the classification system to understand if there are specific conditions under which it becomes read-only.
  Contact SAP Support: If the issue persists and you cannot determine the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: You may want to check transaction codes related to classification, such as CL02 (Change Class) or CL03 (Display Class), to see if the issue is consistent across different transactions.
  Authorization Objects: Look into authorization objects related to classification (e.g., C_TCLM_01 for class management) to ensure the user has the necessary permissions.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.