Message type: E = Error
Message class:  CNV20305 - Messages for conversion packages in CO 
Message number: 164
Message text: Conversion settings were adjusted: &1 (New G/L table)
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The SAP error message CNV20305164 indicates that there has been an adjustment in the conversion settings related to the New General Ledger (New G/L) table during a data migration or conversion process. This message is typically encountered in the context of SAP S/4HANA migrations or when using the SAP Conversion Tools.
Cause: The error message CNV20305164 usually arises due to one or more of the following reasons: Inconsistent Configuration: The conversion settings for the New G/L may not be properly configured or may be inconsistent with the source data. Data Mapping Issues: There may be issues with how data is being mapped from the old system to the new system, particularly if there are changes in the structure of the G/L tables. Missing or Incorrect Data: Required data for the conversion may be missing or incorrectly formatted, leading to adjustments in the conversion settings. Version Compatibility: The version of the SAP system or the tools being
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