Message type: E = Error
Message class:  CNV20305 - Messages for conversion packages in CO 
Message number: 112
Message text: TKA00 entries were successfully saved in CNV_20306_TKA0C
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The SAP error message CNV20305112 indicates that there was a successful saving of entries in the table CNV_20306_TKA0C related to the conversion of cost center accounting data during a data migration or conversion process. This message is typically associated with the SAP S/4HANA migration or data conversion projects, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools.
Cause: Data Migration Process: The message is part of the data migration process where entries related to cost centers (TKA00) are being processed. The message indicates that the entries were saved successfully, which is generally a positive outcome. Conversion Program: This message may arise during the execution of a conversion program that is designed to migrate data from an older SAP system to a newer version or to S/4HANA.
Configuration Issues: If there are any configuration issues or data inconsistencies in the source system, it may lead to warnings or errors, but in
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