How To Fix CNV_10020793 - Message class &1 does not exist; check your input

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 793

• Message text: Message class &1 does not exist; check your input

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_10020793 - Message class &1 does not exist; check your input ?

  The SAP error message CNV_10020793 indicates that a specific message class (in this case, represented by &1) does not exist in the SAP system. This error typically arises during data migration or conversion processes, particularly when using SAP's tools for data transfer or conversion.
  Cause:
  
  Missing Message Class: The specified message class has not been created or is not available in the system.
  Incorrect Input: The input provided to the program or transaction may be incorrect, leading to the system looking for a non-existent message class.
  Transport Issues: If the message class was supposed to be transported from another system (like a development or quality assurance system) and the transport did not occur, it may be missing in the target system.
  Configuration Issues: There may be configuration issues in the system that prevent the message class from being recognized.
  
  Solution:
  
  Check Message Class: Verify if the message class exists in the system. You can do this by using transaction code SE91 (Message Class Maintenance) to check if the message class is defined.
  Create Message Class: If the message class does not exist, you may need to create it using transaction SE91. Ensure that you define the necessary messages within that class.
  Correct Input: Review the input parameters or data you are providing to the program or transaction. Ensure that they are correct and conform to the expected format.
  Transport Check: If the message class is supposed to be in the system, check the transport logs to ensure that the transport containing the message class was successfully imported.
  Consult Documentation: If this error occurs during a specific migration or conversion process, consult the relevant SAP documentation or notes for any prerequisites or additional steps that may be required.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  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 (transaction SLG1) for any 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 reach out to your SAP support team or consult with an SAP expert for further assistance.