How To Fix CNV_PE156 - Config class &1 is not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 156

• Message text: Config class &1 is not valid

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE156 - Config class &1 is not valid ?

  The SAP error message CNV_PE156: Config class &1 is not valid typically occurs in the context of data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools. This error indicates that the configuration class specified in the process is not recognized or is invalid.
  Causes:
  
  Incorrect Configuration Class: The configuration class specified in the migration or conversion process does not exist or is misspelled.
  Missing Customization: The necessary configuration or customization for the specified class has not been set up in the system.
  Authorization Issues: The user executing the process may not have the necessary authorizations to access the configuration class.
  Transport Issues: If the configuration class was recently transported from another system, it may not have been properly imported or activated.
  
  Solutions:
  
  
  Verify Configuration Class:
  
  Check the configuration class name in the error message. Ensure that it is spelled correctly and exists in the system.
  Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to look up the configuration class.
  
  
  
  Check Customization:
  
  Ensure that all necessary configurations related to the migration or conversion process are properly set up.
  If you are using a specific migration tool, refer to the documentation to ensure all prerequisites are met.
  
  
  
  Review Authorizations:
  
  Check the user roles and authorizations to ensure that the user has the necessary permissions to access the configuration class.
  Use transaction SU53 to analyze authorization issues after the error occurs.
  
  
  
  Transport and Activation:
  
  If the configuration class was recently transported, verify that the transport was successful and that the class is active in the target system.
  Use transaction SE09 or SE10 to check the transport logs.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to the specific migration or conversion process you are using. There may be specific instructions or known issues related to the configuration class.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE80, SU53, SE09, and SE10.
  SAP Notes: Search for SAP Notes related to the error message or the specific migration tool you are using. SAP Notes often contain solutions for known issues.
  Community Forums: Check SAP Community forums or other online resources where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.