Message type: E = Error
Message class:  CNV_PE_CHECK - Check Framework messages for posting engine 
Message number: 066
Message text: Config class &1 is erroneous or does not exist
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The SAP error message CNV_PE_CHECK066 indicates that there is an issue with a configuration class in the system. Specifically, it states that the configuration class specified (denoted as &1 in the error message) is either erroneous or does not exist. This error typically arises during data migration or conversion processes, particularly when using SAP's tools for data migration. Causes: Non-Existent Configuration Class: The specified configuration class does not exist in the system. This could be due to a typo in the class name or the class not being created or activated. Incorrect Configuration: The configuration class may exist but is incorrectly defined or has missing parameters. Authorization Issues: The user executing the migration may not have the necessary authorizations to access the configuration class. Transport Issues: If the configuration class was transported from another system, it may not have been transported correctly or completely. Solutions: Verify Configuration Class: Check if the configuration class exists in the system. You
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