How To Fix MSG_CL_ER100 - Not a valid classification system (tModel Key).

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_CL_ER - Message Class for Enterprise Registry

• Message number: 100

• Message text: Not a valid classification system (tModel Key).

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 MSG_CL_ER100 - Not a valid classification system (tModel Key). ?

  The SAP error message MSG_CL_ER100: Not a valid classification system (tModel Key) typically occurs in the context of SAP's classification system, which is used for managing and organizing data in a structured way. This error indicates that the system is unable to recognize or validate the classification system or tModel key that has been provided.
  Causes:
  
  Invalid tModel Key: The tModel key provided may not exist in the system or may have been incorrectly entered.
  Incorrect Configuration: The classification system may not be properly configured in the SAP system.
  Authorization Issues: The user may not have the necessary permissions to access the classification system or the specific tModel.
  Data Consistency Issues: There may be inconsistencies in the data related to the classification system, such as missing or corrupted entries.
  
  Solutions:
  
  Verify tModel Key: Check the tModel key you are using to ensure it is correct. You can do this by looking it up in the classification system.
  Check Configuration: Ensure that the classification system is properly configured in your SAP environment. This may involve checking settings in the SAP GUI or relevant configuration transactions.
  User Authorization: Verify that the user has the necessary authorizations to access the classification system. This may involve checking user roles and permissions in the SAP system.
  Data Integrity Check: Perform a data integrity check to ensure that all necessary entries in the classification system are present and not corrupted. This may involve running specific reports or transactions to identify issues.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the classification system and tModel keys.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for further assistance, especially if it appears to be a system-level issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., CL02 for class maintenance) that may help you navigate the classification system more effectively.
  
  By following these steps, you should be able to diagnose and resolve the MSG_CL_ER100 error in your SAP system.