Message type: E = Error
Message class:  CNV_PE_CHECK - Check Framework messages for posting engine 
Message number: 028
Message text: &2 execution rule &1 does not exist
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The SAP error message CNV_PE_CHECK028 indicates that there is an issue with a specific execution rule that is expected to exist but cannot be found in the system. This error typically arises in the context of data migration or conversion processes, particularly when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
Cause: Missing Execution Rule: The execution rule specified in the error message does not exist in the system. This could be due to: The rule not being created or activated. The rule being deleted or not transported correctly from a development environment to a production environment. A typo or incorrect reference in the configuration or migration settings.
Configuration Issues: There may be issues with the configuration settings related to the data migration or conversion process. Version Mismatch: The execution rule may be part of a specific version of the migration tool or package that is not compatible
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