How To Fix CNV_00001177 - Class is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 177

• Message text: Class is missing

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_00001177 - Class is missing ?

  The SAP error message CNV_00001177 indicates that a class is missing in the system, which is typically related to the SAP Conversion or Migration process. This error can occur during data migration activities, especially when using tools like SAP S/4HANA Migration Cockpit or other data transfer methods.
  Cause:
  
  
  Missing Class: The specific class that the system is trying to access is not available in the SAP system. This could be due to:
  
  The class not being activated.
  The class not being transported to the system.
  The class being deleted or not installed properly.
  
  
  
  Incorrect Configuration: The configuration settings may not point to the correct class or may have been altered.
  
  
  Version Mismatch: The version of the migration tool or the source system may not be compatible with the target system.
  
  
  Solution:
  
  
  Check Class Availability:
  
  Use transaction code SE24 (Class Builder) to check if the class exists in the system.
  If the class is missing, you may need to transport it from another system or create it if it is a custom class.
  
  
  
  Activate the Class:
  
  If the class exists but is not activated, activate it using transaction code SE24.
  
  
  
  Transport Requests:
  
  If the class is part of a transport request, ensure that the transport has been imported successfully into the target system.
  
  
  
  Check Configuration:
  
  Review the configuration settings related to the migration process to ensure they are correct and point to the right classes.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for the specific migration tool you are using to ensure that all prerequisites are met.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: SE24 (Class Builder), SE80 (Object Navigator), ST22 (Dump Analysis), SM21 (System Log).
  Migration Tools: SAP S/4HANA Migration Cockpit, SAP Data Services.
  SAP Notes: Always check for the latest SAP Notes related to migration and conversion errors, as they may provide specific fixes or workarounds.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.